Hitachi Unified Storage VM Block Module Hardware User Guide FASTFIND LINKS Contents Product Version Getting Help MK-92HM7005-04
© 2012 -2013 Hitachi Ltd. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or stored in a database or retrieval system for any purpose without the express written permission of Hitachi, Ltd. (hereinafter referred to as "Hitachi"), and Hitachi Data Systems Corporation (hereinafter referred to as "Hitachi Data Systems").
Contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii Safety and environmental information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .viii Intended audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .viii Release notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .viii Product version . . . . . . . . . . . . .
Array groups and RAID levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3 RAID 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3 RAID 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5 RAID 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8 Sequential data striping. . . . . . . . . . . . . . . . . . . .
Power On/Off procedures ...................................................................5-1 Safety and environmental information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power controls and indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Normal Power on/off procedures . . . . . . . . . . . . . . . . . . . . . . . . . . .
Component weight and location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Height considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Placing components in the rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Working with racks or components in the rack . . . . . . . . . . . . . . . . . . . . . . . . . Air vents and airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Blanking panels . . . . .
Preface This manual provides instructions and information to use the Hitachi Unified Storage VM storage system. Read this document carefully to understand how to use this product, and keep a copy for reference.
Safety and environmental information Caution: Before operating or working on the Hitachi Unified Storage VM storage system, read the safety and environmental information in Safety requirements on page 3-1, and Regulatory Compliance on page D-1. Intended audience This document is intended for system administrators, Hitachi Data Systems representatives, and authorized service providers who install, configure, and operate the HUS VM storage system.
• Updated the RAID descriptions for the HUS VM system in Chapter 2, Hardware architecture. • Updated the SOMs and descriptions for the HUS VM system in Appendix B, System option modes.
Convention Description | vertical bar Indicates that you have a choice between two or more options or arguments. Examples: [ a | b ] indicates that you can choose a, b, or nothing. { a | b } indicates that you must choose either a or b. Hitachi Data Systems user manuals use the following icons to draw attention to information. Icon Meaning Description Tip Helpful information, guidelines, or suggestions for performing tasks more effectively.
Accessing product documentation The Hitachi Unified Storage VM user documentation is available on the Hitachi Data Systems Support Portal: https://Portal.HDS.com. Check this site for the most current documentation, including important updates that may have been made after the release of the product. Getting help The Hitachi Data Systems customer support staff is available 24 hours a day, seven days a week.
xii Preface Hitachi Unified Storage VM Block Module Hardware User Guide
1 Introduction This chapter describes the hardware used in The HUS VM storage system.
hardware components The following sections describe the HUS VM storage system components. Overview The Hitachi Unified Storage VM storage system (HUS VM) is an entry-level enterprise storage system offering the features and functions of a high-end enterprise-class system with the configuration simplicity of a modular system. At a high level, it is comprised of a controller chassis and a variety of drive boxes in a one to five rack configuration.
Figure 1-1: HUS VM example storage system Item Description Item Description 1 Blank space for installation lifter (2U) 2 Controller chassis (CBX) 3 DBX (dense) drive box (up to 48 LFF drives) One of the following drives: • DBS drive box (up to 24 SFF drives each) • DBL drive box (up to 12 LFF drives each) • DBF drive box (up to 12 FMD drives each) 5 Blank space (1U) 4 Controller chassis The c 5U high controller chassis contains six types of pluggable modules as shown and described in the follow
Figure 1-2: Controller chassis - 3D views Controller configuration and components The HUS VM controller chassis is vertically divided into two sections called clusters. Each clusters contains a Main blade, a Microprocessor (MP) blade, at least two host I/O modules and back-end I/O modules, and two redundant power supplies. Both clusters share a single service processor. The following illustrations show the front and rear views of a controller chassis.
Figure 1-3: Controller chassis - front and rear views Table 1-2: Controller chassis components Item Item Name 1 Control Panel Min 1 Description Max 1 See Power controls and indicators on page 5-2 Introduction Hitachi Unified Storage VM Block Module Hardware User Guide 1–5
Item Item Name Min Description Max 2 Main Blade 2 (cache memory, cache flash memory, backup battery) 4 The main blades contain the cache memory, cache backup (destage) battery, and cache flash memory (SSD). Cache memory is available in 64GB, 128GB and 192GB capacities. If the power fails, the cache is protected from data loss by backup batteries and the cache flash memory, an 80 GB SSD drive. The batteries keep the cache alive for up to 10 minutes while the data is transferred to the flash memory.
Table 1-3: Host I/O module Installation Installation Order Installation Slot Location Diskless Mode Disk-in Model 1 1A/2A (CHB-1A/2A) 1A/2A (CHB-1A/2A) 2 1B/2B (CHB-1B/2B) 1B/2B (CHB-1B/2B) 3 1C/2C (CHB-1C/2C) 1C/2C (CHB-1C/2C) 4 1D/2D (CHB-1D/2D) 1D/2D (CHB-1D/2D) 5 1E/2E (CHB-1E/2E) 6 1F/2F (CHB-1F/2F) Drive boxes The HUS VM supports four different drive box as described below. All components in the drive boxes are configured in redundant pairs to prevent system failure.
The illustrations on this page and the next page show the front and rear panels of the four drive boxes. The tables following the illustrations describe the main features of each panel.
Figure 1-6: DBL and DBS drive box (rear panel) Item 1 Name Color Description POWER LED Green OFF - no power is supplied to the system ON - Power is supplied to the system READY LED Green ON - normal operation. Storage system is operational.Fast blink internal processing. Storage system is operational.Slow blink offline download processing completed (maintenance). LOCATE LED Orange ON - nonfatal error. Storage system can remain operating. Contact technical support.
Figure 1-7: DBF drive box Item Description Item Description Ite m Description 1 Flash module Active LED - lights when flash module is activated.
Figure 1-8: DBX (dense) drive box Item 1 Description LFF HDD or SSD Item 2 Description ENC (adapter) card Item 3 Description Power Supply Introduction Hitachi Unified Storage VM Block Module Hardware User Guide 1–11
Figure 1-9: DBX (dense) drive box front bezel and front panel Item Description 1 Unit A Status LEDs 3 Unit B Status LEDs Item 2 Description Lock The rear panel of a DBX high-density drive box includes two redundant power supplies, two ENC-IN ports, and two ENC-OUT ports for each section inthe drive box. The ports provide the connections to daisy-chain highdensity expansion units in the system. The rear panel also includes LEDs that show the status of the ENC units and the power supplies.
Figure 1-10: DBX (dense) drive box rear panel Item Description Item Description 1 Power Supply B1 2 Power Supply B0 3 Power Supply A1 4 Power Supply A0 5 ENC Unit B1 IN 6 ENC Unit B1 OUT 7 ENC Unit B0 IN 8 ENC Unit B0 OUT 9 ENC Unit A1 IN 10 ENC Unit A1 OUT 11 ENC Unit A0 IN 12 ENC Unit A0 OUT Cache memory The HUS VM can be configured with up to 256 GB of cache memory. Each HUS VM system contains two Main blades as shown in the following illustration.
Cache capacity The cache capacity is determined by the RAID level, the number of drives installed in the system, and whether Dynamic Provisioning (DP)/Dynamic Tiering (DT)/Dynamic Cache Residency (DCR)/Universal Volume Manager (UVM) are applied/not applied.The recommended data cache capacity per Cache Logical Partition (CLPR) = (CLPR capacity) - ( DCR Extent setting capacity per CLPR)When CLPR is not applied to DP/DT/DCR, install the recommended data cache capacity shown in the following table.
Shared memory Shared Memory, which holds storage system configuration information, resides in cache. Shared Memory Capacity plus Cache Memory Capacity equals Total Cache Memory Capacity necessary for the storage system. The following table shows the shared memory capacity needed depending on by the kind of software applications are installed in the system.
1–16 Introduction Hitachi Unified Storage VM Block Module Hardware User Guide
2 Hardware architecture This chapter briefly describes the Hitachi Unified Storage VM system architecture, including some of the functional and operational characteristics.
System architecture overview This section briefly describes the architecture of the Hitachi Unified Storage VM storage system. Hardware architecture The basic system architecture is shown in the following diagram. Figure 2-1: HUS VM Architecture Overview The system consists of two main hardware assemblies: • A controller chassis that contains the logic and processing components • One or more drive boxes that contains disk drives and/or solid state (flash) drives.
Array groups and RAID levels The array group (also called parity group) is the basic unit of storage capacity for the HUS VM storage system. It is a set of four physical drives installed into any disk trays (in any “roaming” order on HUS VM). When a set of one or two such Array Groups (four or eight drives) is formatted using a RAID level, the resulting RAID formatted entity is called a Parity Group.
Item Disadvantage Item Description Requires disk capacity twice as large as the user data. Description Description Mirror disks (duplicated writing) The two parity groups of RAID 1(2D+2D) are concatenated and data is scattered on them. In the each RAID pair, data is written in duplicate. Advantage This configuration is highly usable and reliable because of the duplicated data. It has higher performance than the 2D+2D configuration because it consists of the four RAID pairs.
Figure 2-2: Sample RAID 1 (2D + 2D) Layout RAID 5 A RAID 5 array group consists of four or eight data drives, (3D+1P) or (7D+1P. The data is written across the four (or eight) drives in a stripe that has three (or seven) data chunks and one parity chunk. Each chunk contains 768 logical blocks, because HUS VM supports only open systems.
Item 2–6 Description Description Data is written to multiple disks successively in units of block (orblocks). Parity data is generated from data of multiple blocks and written to optional disk. Advantage RAID 5 fits the transaction operation mainly uses small size random access because each disk can receive I/O instructions independently. It can provide high reliability and usability at a comparatively low cost by virtue of the parity data.
Item Description Description In the case of RAID5 (7D+1P), two or four parity groups (eight drives)are concatenated, and the data is distributed and arranged in 16 drives or 32 drives. Advantage When the parity group becomes a performance bottleneck, the performance improvement can be attempted because it is configuredwith twice and four times the number of drives in comparison with RAID5 (7D+1P).
RAID 6 A RAID 6 array group consists of eight data drives (6D+2P). The data is written across the eight drives in a stripe that has six data chunks and two parity chunks. Each chunk contains 768 logical blocks.. In RAID 6, data can be assured when up to two drives in an array group fail. Therefore, RAID 6 is the most reliable of the RAID levels. The following figure illustrates the RAID 5 configuration. The table following the figure describes it.
parity tracks are mapped to specific physical drive locations within each array group. Therefore, each track of an LDEV occupies the same relative physical location within each array group in the storage system. In a RAID-6 (dual parity) configuration, two parity drives are used to prevent loss of data in the unlikely event of a second failure during a rebuild of a previous failure.
Figure 2-5: LDEV Striping Across 4 RAID 5 (7D+1P) Array Groups All data drives and device emulation types are supported for LDEV striping. LDEV striping can be used in combination with all HUS VM data management functions. Systems operations This section provides high-level descriptions of HUS VM systems compatibility, support, and configuration.
• Command tag queuing • Industry-standard failover and logical volume management software • SNMP remote storage system management The global cache feature in HUS VM enables any fibre-channel port to have access to any logical unit in the storage system. In the HUS VM, each logical unit can be assigned to multiple fibre-channel ports to provide I/O path failover and/or load balancing (with the appropriate middleware support, such as HGLAM) without sacrificing cache coherency.
Each fibre-channel port on the HUS VM provides addressing capabilities for up to 2,048 LUNs across as many as 255 host groups, each with its own LUN 0, host mode, and host mode options. Multiple host groups are supported using LUN Security. • The Hitachi SNMP Agent User Guide describes the SNMP API interface for the VSP storage systems and provides instructions for configuring and performing SNMP operations.
Figure 2-6: Storage Navigator and SVP Configuration Hardware architecture Hitachi Unified Storage VM Block Module Hardware User Guide 2–13
2–14 Hardware architecture Hitachi Unified Storage VM Block Module Hardware User Guide
3 Safety requirements Install Hitachi equipment in accordance with the local safety codes and regulations that apply to the facility. This chapter contains additional safety information that may apply to your facility. Read and follow the safety guidelines in this chapter before installing the equipment. The key sections in this chapter are.
General safety guidelines Observe the following general site guidelines: • General Requirements: The data center must comply with all applicable safety regulations, standards, and requirements for installing and operating industrial computer equipment similar to a HUS VM storage system. • Fire protection: The data center must have an operational fire protection system appropriate for use with computer and electrical equipment.
• Do not use ungrounded power cables. • Keep the area clear and dust-free during and after installation. • Do not block or cover equipment openings. Ensure that all equipment has adequate airflow. Failure to follow these guidelines can cause overheating and affect the system reliability. • If you notice unusual heat generation, odors, or smoke emission, shut off the power feed to the equipment and contact a maintenance engineer.
Preventing electric shock 3–4 • Before starting work, note where the emergency power-off switches are located, and be sure you know how to operate them. • Before starting work, be sure there are no potential electric hazards in the maintenance area such as insufficient grounding or a wet floor.
4 Site preparation This chapter provides site and system requirements and specifications that are needed to plan a Hitachi Unified Storage VM storage system installation and prepare the site where the system will be installed, so that the equipment installation is efficient and trouble-free. This chapter may not provide all the information needed for every installation.
Safety requirements Caution: Before operating or working on the HUS VM storage system, read the safety and environmental information in Safety requirements on page 3-1. Responsibilities The responsibilities for site planning and preparation are shared by the system users and Hitachi Data Systems support. The required installation planning tasks must be scheduled and completed to ensure successful and efficient installation of the Unified Storage VM storage system.
Site Preparation checklist The following checklist can help you ensure that your site meets all requirements to install a Unified Storage VM storage system. You can make copies of this checklist for each installation you perform and check each step after it has been performed. Completing this checklist can help ensure smooth and efficient installation of a HUS VM storage system. Definition of terms Equipment: The hardware delivered to the customer site that includes the HUS VM storage system components.
Preinstallation Checklist Safety Requirements See Chapter 3, Safety requirements. Does the data center provide appropriate fire protection for computer equipment similar to HUS VM storage systems? Is the data center free of hazards such as cables that obstruct access to the equipment? Delivery Requirements See Data center requirements on page 4-6.
Preinstallation Checklist Yes No Does the data center provide adequate protection for a HUS VM storage system from the following? electrostatic discharge electrical/radio frequency interference . dust, pollution, and particulate contamination Does the data center provide adequate acoustic insulation to operate the Unified Storage VM storage system? Operational Requirements See Operational requirements on page 4-17.
Equipment weight The floors, elevators, and ramps must be able to support the weight of the delivered equipment as it is moved to the installation location. Spreader plates may be required to distribute the load and protect the floor as the equipment is moved from the receiving area to the installation location. Consult the system bill of materials to establish the approximate weight of the equipment. See the next paragraph for information about calculating the exact weight of the equipment.
Table 4-4: Data center requirements Item Description General The data center must provide appropriate power, air conditioning, cabling, and fire protection. Temperature The data center must maintain ambient temperature from 50º F (10ºC) to 104º F (40ºC) Humidity The data center must maintain ambient humidity from 20% to 80%, non-condensing ESD The data center must provide adequate protection from electrostatic discharge (ESD).
Figure 4-1: HUS VM overview Table 4-5: HUS VM components Item 1 Description Controller Chassis Item 2 Description Item Dense Drive Box 3 Description DBS, DBL, and DBF Drive Box Table 4-6: HUS VM system dimensions Dimension (in/mm) One Rack Two Racks Three Racks Width 23.5 / 600 47 / 1200 70.5 / 1800 Depth 43.3 / 1100 43.3 / 1100 43.
Electrical specifications Note: The current and power specifications in the following tables were measured on a HUS VM system in a controlled environment. To calculate the power draw, current draw, and heat output of a specific system, see Table 4-10: HUS VM component specifications on page 4-13 or (easier) use the Power and Weight calculator at the following URL. http://www.hds.com/go/weight-and-power-calculator/ Contact technical support if you need assistance using this tool.
• An insulated grounding conductor that is identical in size and insulation material and thickness to the grounded and ungrounded branch-circuit supply conductors. It must be green, with or without yellow stripes, and must be installed as a part of the branch circuit that supplies the unit or system. • The grounding conductor described above should be connected to earth ground at the service equipment or other acceptable building earth ground.
Phas e Three Location PDU Plug Max Max No.
Figure 4-2: PDP Breaker Connections for the control rack Caution: When installing a system, do not connect the AC cables as shown in the following illustration. Otherwise, a system failure can occur when either of the AC inputs is interrupted.
UPS power connection The following illustrations show the correct way to connect the PDUs to the PDP when an uninterruptable power supply is used. Figure 4-4: Breaker configurations when using a UPS Component weight, heat, airflow, and power consumption The following table provides physical specifications of the individual HUS VM components. Table 4-10: HUS VM component specifications Component Name. Component Model No.
Component Name. Component Model No. Weight (lb/Kg) Power Consumption (VA) Heat Output Airflow (cubic meters/sec) FC SFP for 8Gbps Shortwave DW-F700-1US 0.44 / 0.2 - - - FC SFP for 8Gbps Longwave DW-F700-1UL 0.44 / 0.2 - - - DF-F850-SC3 0.88 / 0.4 - - - DF-F850-SC5 1.76 / 0.8 - - - host I/O module (FC 8G) DF-F850-HF8GR 1.32 / 0.6 11 10 - Cache Memory (4GB) DF-F850-4GB 0.44 / 0.2 3 3 - Cache Memory (8GB) DF-F850-8GB 0.66 / 0.
Item Operating Not Operating Guaranteed value to vibration Less than 2.45m/ S2(0.25G) Less than 3.9m/s2 (0.4G)No critical damage for product function.(Normal operating with part replacement) - Guaranteed value to impact No impact 78.4m/s2(8.0G) 15ms - Guaranteed value to seismic wave Less than 2.45 sq. meter (0.25 G)(250gal approx.) Less than 3.9 m/s2 (0.4G) (400gal)- No critical damage for product function.(Normal operating with part replacement)Below 9.8 m/s2 (1.
Service clearance, floor cutout, and floor load rating This section describes the service clearance requirements for the HUS VM storage system, based on the clearance and required floor cutouts for cabling. • Make sure that the service clearance for maintenance is available.
Figure 4-5: Service Clearances, single rack system Operational requirements The operational requirements for the HUS VM include: • LAN for Storage Navigator Storage Navigator communicates with the HUS VM storage system over a LAN to obtain system configuration and status information and send user commands to the storage system. Storage Navigator serves as the integrated interface for all resource manager components.
• External data storage If you plan to attach external storage to the HUS VM storage system, be sure to include the appropriate power and space requirements in your planning. Data cabling This section provides basic cabling diagrams for connecting ENC (data and control) cables between the control chassis and the drive boxes in the block module, and between the controller and HNAS storage in the file module.
Figure 4-6: Block module ENC cabling for DBS, DBL, and DBF drive boxes This diagram shows the cabling from the controller to the DBX dense drive box (48 LFF drives).
Figure 4-7: Block module ENC cabling for DBX drive boxes 4–20 Site preparation Hitachi Unified Storage VM Block Module Hardware User Guide
File module This diagram shows the cabling from the controller to HNAS.
Figure 4-9: File module cabling from controller to HNAS (2 of 4) Table 4-14: Dual CHB - Fabric configuration HNAS 1 2 3 4 FC1 FC1 FC2 FC2 1 2 3 4 CL1-1A CL1-5B CL2-2A CL1-6B 1 2 3 4 CL1-5A CL1-1B CL2-6A CL2-2B FC1 FC2 4–22 Site preparation Hitachi Unified Storage VM Block Module Hardware User Guide
Figure 4-10: File module cabling from controller to HNAS (3 of 4) Table 4-15: Single CHB - DAS configuration HNAS1 1 2 3 4 CL1-1A CL1-3A CL2-2A CL1-4A 1 2 3 4 CL1-1A CL1-3A CL2-2A CL2-4A HNAS2 Site preparation Hitachi Unified Storage VM Block Module Hardware User Guide 4–23
Figure 4-11: File module cabling from controller to HNAS (4 of4) Table 4-16: Single CHB - DAS configuration HNAS1 1 2 3 4 CL1-1A CL1-1B CL2-2A CL2-2B 1 2 3 4 CL1-5A CL1-5A CL2-6A CL2-6B HNAS2 4–24 Site preparation Hitachi Unified Storage VM Block Module Hardware User Guide
5 Power On/Off procedures This chapter describes the power controls and system status lights, as well as the prerequisites and procedures to turn the HUS VM storage system power on and off. It also describes the procedures to follow in case of a power failure.
Safety and environmental information Caution: Before operating or working on the HUS VM storage system, read Safety requirements on page 3-1, and the environmental information in Regulatory Compliance on page D-1 in this manual. Power controls and indicators The front panel of the HUS VM storage system controller includes a power ON/OFF switch, and a set of indicator LEDs that show the system status. The are located in the upper left corner of the controller, as shown in the following figure.
Item Description Item 1 POWER LED- indicates 2 the power status of the system • Off when no AC power is applied to the system. • Amber when AC power is applied to the system and the system is in standby mode • Green when the power switch is ON and the system is running (DC power applied to the system). 4 ALARM LED • Off when the system is off or when the system is on and operational with no failures .
• The storage system consumes significantly less power than it does in operating mode. For example, a storage system that draws 100 amps while operating draws only about 70 amps in standby mode. See Table A-4: HUS VM electrical specifications, single phase current on page A-5 and Table A-6: Power consumption, single phase current on page A-6 for power consumption specifications. To put the storage system into standby mode from the OFF condition: 1.
Power off procedures Prerequisites: • Ensure that all software-specific shutdown procedures have been completed. Refer to the applicable user manuals for details • Ensure that the SVP mode is set to “View Only”. • Ensure that all I/O activity to the storage system has stopped. You can vary paths offline and shut down the attached hosts. • Ensure that all users have logged off. Follow this procedure exactly when powering the storage system off. 1.
Power on procedure after emergency power off To power up the HUS VM storage system after emergency shutdown, reverse the emergency power off procedure. 1. In all system racks, turn on the circuit breakers in the PDUs that power the drive units. 2. In the controller rack, turn on the circuit breakers in the PDUs that power the controller. 3. Follow the instructions in Normal Power on/off procedures on page 5-4.
Item 3 Description The cache memory data and the storage system configuration are backed up to the cache flash memory on the main boards. The backup continues even if power is restored during the backup. Item 4 Description Unrestricted data backup. Data is continuously backed up to the cache flash memory. The cache flash memory consists of two 80 GB SSDs, one on each of the two boards in each main blade.
5–8 Power On/Off procedures Hitachi Unified Storage VM Block Module Hardware User Guide
6 Troubleshooting This chapter provides troubleshooting information for the HUS VM storage system storage system.
Getting help If you have difficulty with any of the procedures included in this chapter, or if a procedure does not provide the answer or results you expect, contact Hitachi Data Systems support. See Getting help on page 3-xi in the preface of this manual. Solving problems The HUS VM storage system storage system is highly reliable and is not expected to fail in any way that would prevent access to user data. The READY LED on the control panel must be ON when the storage system is operating online.
SIM display on Storage Navigator enables users to remotely view the SIMs reported by the attached storage systems. Each time a SIM is generated, the amber Message LED on the control panel turns on. The Hi-Track remote maintenance tool also reports all SIMs to the support center SIMs are classified according to severity. There are four levels: service, moderate, serious, or acute. The service and moderate SIMs (lowest severity) do not require immediate attention and are addressed during routine maintenance.
6–4 Troubleshooting Hitachi Unified Storage VM Block Module Hardware User Guide
A Specifications This appendix provides the mechanical, electrical, and environmental specifications for the Hitachi Unified Storage VM storage system.
System specifications The following table lists the system specifications of the HUS VM storage system.
Item Specifications Power requirements Single phase to storage system (see Table A-4: HUS VM components. electrical specifications, Single or three phase to PDU input.
Mechanical specifications The following table lists the mechanical specifications of the HUS VM storage system. Note: The current and power specifications in the following tables were measured on a HUS VM system in a controlled environment. To calculate the power draw, current draw, and heat output of a specific system, see Table 4-10: HUS VM component specifications on page 4-13 or (easier) use the Power and Weight calculator at the following URL. http://www.hds.
Table A-4: HUS VM electrical specifications, single phase current Item Power requirements, system operating 1 Unit Specification AC, single phase 2 pole + ground 200 V -8% min to 240 V +6% max 1 50 Hz ±3 Hz, 60 Hz ± 2 Hz Maximum 41.4 KVA Maximum total power Controller chassis power supply consumption for a typical HUS VM storage system during normal operation is TBS amps. Input Current 3.81 A Steady Current 1.91 A Leakage Current 0.
Table A-5: HUS VM electrical specifications, three phase current Item Power requirements, system operating 1 Unit Specification AC, three phase 2 208 V +5/-15%, 50/60 Hz 3 Maximum 41.4 KVA Controller chassis power supply Input Current 3.81 A Steady Current 1.91 A Leakage Current 0.28 mA Inrush current 1st (0-p) 25 A 2nd (0-p) 20A 1st (0-p) Time (-25%: 150 ms SFF drive box power supply Input Current 2.61 A Steady Current 1.31 A Leakage Current 1.
Configuration Max Power Consumption 3, 5 1 Current per rack Notes: 1. The numbers in this table were calculated with the Weight and Power calculator Depending on the air temperature and actual voltage where the system is installed, current draw can vary as much as + or - 10%. To predict power draw for a specific system, contact technical support for assistance. 2. Idle condition - system is powered on but not being accessed. 2. Max power consumption - all disks are in write mode. 3.
Phase Location Three Max Voltage Rating PDU Plug Max Current Rating No.
Operating1,2 Item Not Operating3 Shipping and Storage4 Earthquake resistance (m/s2) Up to 2.5 10 - - Shock - 78.4 m/s2, 15 ms Horizontal8 Incline Impact 1.22 m/s Vertical: Rotational Edge 0.15 m 9 Acoustic Level DBS DBL DBX DBF Dust Altitude n/a 60dB 60dB 62dB 60dB 55dB 55dB 57dB 55dB Less than 0.15mg per cubic meter of air - -60 m to 3,000 m - -60 m to 12,000 m Notes: 1. Environmental specification for operation should be met before the storage system is powered on.
A–10 Specifications Hitachi Unified Storage VM Block Module Hardware User Guide
B System option modes This appendix lists and describes the public system option modes.
System option modes To provide greater flexibility and enable the HUS VM to be tailored to unique customer operating requirements, additional operational parameters, or system option modes, are available. At installation, the modes are set to their default values, as shown in the following table. Be sure to discuss these settings with your Hitachi Data Systems team if you think changes should be made. The system option modes can only be changed by a Hitachi Data Systems representative.
Mode 22 Category Public Description Regarding the correction copy or the drive copy, in case ECCs/LRC PINs are set on the track of copy source HDD, mode 22 can be used to interrupt the copy processing (default) or to create ECCs/LRC PINs on the track of copy target HDD to continue the processing.
Mode 122 Category Description ShadowImage For Split or Resync request from the Mainframe host and Storage Navigator. MCU/ RCU Default OFF - OFF - OFF Both Mode 122 = ON: By specifying Split or Resync, Steady/Quick Split or Normal/Quick Resync is respectively executed in accordance with Normal/Quick setting. Mode 122 = OFF (default)? By specifying Split or Resync, Steady/Quick Split or Normal/Quick Resync is respectively executed in accordance with the Normal/Quick setting.
Mode Category Description 449 Universal Replicator Detecting and monitoring path blockade between MCU and RCU of Universal Replicator - Mode 449 on: Detecting and monitoring of path blockade will NOT be performed.- Mode 449 off (default *) : Detecting and monitoring of the path blockade will be performed.* Newly shipped DKC will have Mode 449 = ON as default.Note: The mode status will not be changed by the microcode exchange.
Mode 457 Category ESM Description The high speed LDEV format for external volumes is available by setting System Option Mode 457 to ON. When Mode 457 is ON and you select the external volume group and format an LDEV, any Write processing on the external LUs will be skipped. MCU/ RCU Default OFF Both Mode 457 = ON: High speed LDEV format for external volumes is supported . Control Block Write of external LDEVs in Mainframe emulation is supported by Storage Navigator.
Mode 467 Category Description ShadowImage, ,Compatible FlashCopy® V2, Snapshot, Volume Migration, Universal Volume Manager For the following features, the current copy processing slows down when the percentage of “dirty” data is 60% or higher, and it stops when the percentage is 75% or higher. Mode 467 is provided to prevent the percentage from exceeding 60%, so that the host performance is not affected.
Mode 474 Category Universal Replicator Description UR initial copy performance can be improved by issuing a command from CCI/BC Manager to execute a dedicated script consists of UR initial copy (Nocopy), UR suspend, TC (Sync) initial copy, TC (Sync) delete, and UR resync. Mode 474 = ON: For a suspended UR pair, a TC-Sync pair can be created with the same P-VOL/S-VOL so that UR initial copy time can be reduced by using the dedicated script.
Mode 491 Category ShadowImage Description Mode 491 is used to improve the performance of ShadowImage and ShadowImage FCv1. MCU/ RCU Default OFF - Mode 491 = ON: The option (Reserve05) of ShadowImage/ ShadowImage for z/OS is available. If the option is set to ON, the copy of ShadowImage/ ShadowImage for z/OS/ ShadowImage FCv1 will be performed from 64 processes to 128 processes so that the performance will be improved.
Mode Category 725 Description This option determines an action when Not Ready is returned from the external volume. Mode 725 = ON: When Not Ready is returned, the external path is blocked and the path status can be automatically recovered (Not Ready blockade). Note that the two behaviors, automatic recovery and blockade, may be repeated. From version 60-05-06-00/00, the following is added. For the device of Not Ready blockade, the Device Health Check is executed after 30 seconds.
Mode 491 Category ShadowImage Description Mode 491 is used for improving the performance of ShadowImage / ShadowImage FCv1. MCU/ RCU Default OFF . OFF MCU/ RCU OFF . Mode ON: The option (Reserve05) of ShadowImage is available. If the option is set to ON, the copy of ShadowImage / ShadowImage FCv1 will be performed from 64 processes to 128 processes so that the performance will be improved. Mode OFF (default): The option (Reserve05) of ShadowImage is unavailable.
Mode 676 Category Audit Log Description This option is used to set whether an audit log is to be stored onto the system disk or not. MCU/ RCU Default OFF . OFF . Mode 676 = ON: An audit log is stored onto the system disk. Mode 676 = OFF (default): An audit log is not stored onto the system disk. This mode is also enabled/disabled by enabling/disabling Audit Log Buffer on the [Audit Log Setting...] window, which can be opened by selecting [Settings] -> [Security] -> [Audit Log Setting...
Mode 696 Category Open Description This mode is available to enable or disable the QoS function. MCU/ RCU Default OFF . OFF . Mode 696 = ON: QoS is enabled. (In accordance with the Share value set to SM, I/Os are scheduled. The Share value setting from RMLIB is accepted) Mode 696 = OFF (default): QoS is disabled. (The Share value set to SM is cleared. I/ O scheduling is stopped. The Share value setting from host is rejected) Note: 1. Set this mode to ON when you want to enable the QoS function.
Mode 704 Category Open Description To reduce the chance of MIH, this option can reduce the priority of SI, VM, CoW Snapshot, Flash Copy or Resync copy internal IO requests so that host IO has a higher priority. This mode creates new work queues where these jobs can be assigned with a lower priority. MCU/ RCU Default OFF . OFF . OFF . Mode 704 = ON: Copy processing requested is registered into a newly created queue so that the processing is scheduled with lower priority than host I/O.
Mode 725 Category Universal Volume Manager Description This option determines an action when Not Ready is returned from the external volume. MCU/ RCU Default OFF . Mode 725 = ON: When Not Ready is returned, the external path is blockedand the path status can be automatically recovered (Not Ready blockade). Note that the two behaviors, automatic recovery and blockade, may be repeated. From version 60-05-06-00/00, the following is added.
Mode 725 Category Universal Volume Manager Description Notes (continued) (continued) MCU/ RCU Default OFF 3. While USP V/VM is used as an external subsystem and its volume is DP-VOL, if some Pool-VOLs constituting the DP-VOL are blocked, a phenomenon of external path blockade and recovery occurs repeatedly. 4. In the case that a virtual volume mapped by UVM is set to pool-VOL and used as DP-VOL in local subsystem, this SOM can be applied without problem.
Mode 733 Category Volume Migration Description This option enables to suspend Volume Migration or Quick Restore operation during LDEV-related maintenance. MCU/ RCU Default OFF . RAID600: Mode 733 = ON: Volume Migration or Quick Restore operation during LDEV-related maintenance is suspended. Mode 733 = OFF (default): Volume Migration or Quick Restore operation during LDEV-related maintenance is not suspended.
Mode 734 Category Dynamic Provisioning Description When exceeding the pool threshold, the SIM is reported as follows: MCU/ RCU Default OFF . OFF - Mode 734 = ON: The SIM is reported at the time when exceeding the pool threshold. If the pool usage rate continues to exceed the pool threshold, the SIM is repeatedly reported every eight (8) hours. Once the pool usage rate falls below the pool threshold, and then exceeds again, the SIM is reported.
Mode 745 Category Universal Volume Manager Description Enables to change the area where the information is obtained as the Characteristic1 item from SYMMETRIX. MCU/ RCU Default OFF - Mode 745 = ON: • The area where the information is obtained as the Characteristic1 item from SYMMETRIX is changed. • When CheckPaths or Device Health Check (1/hour) is performed, the information of an already-mapped external volume is updated to the one after change.
Mode 749 Category Dynamic Provisioning Description Disables the Dynamic Provisioning Rebalance function that allows the HDDs of all ECC Groups in the pool to share the load. MCU/ RCU Default OFF . OFF MCU/ RCU Mode 749 = ON: The Dynamic Provisioning Rebalance function is disabled. Mode 749 = OFF (default): The Dynamic Provisioning Rebalance function is activated. Notes: 1. This option is applied when no change in performance characteristic is desired. 2.
Mode 803 Category Description Dynamic Provisioning, While a DP pool VOL is blocked, if a read or write I/O is issued to the blocked pool VOL, this mode can enable the Data Retention Protect attribute of DRU for the target DP-VOL. Utility Mode 803 = ON: MCU/ RCU Default OFF . While a DP pool VOL is blocked, if a read or write I/O is issued to the blocked pool VOL, the DRU attribute is set to Protect.
Mode 857 Category OPEN Description This mode enables or disables to limit the cache allocation capacity per MPB to within 128GB except for cache residency. MCU/ RCU Default OFF - OFF . OFF . Mode 857 = ON: The cache allocation capacity is limited to within 128GB. Mode 857 = OFF (default): The cache allocation capacity is not limited to within 128GB.
Mode 896 Category Dynamic Provisioning, Dynamic Tiering Description The mode enables or disables the background format function performed on an unformatted area of a DP/DT pool. MCU/ RCU Default OFF . For information about the operating conditions, refer to the Hitachi Unified Storage VM Block Module Provisioning Guide. Mode 896 = ON: The background format function is enabled. Mode 896 = OFF (default): The background format function is disabled. Note: 1.
Mode 897 Category Dynamic Tiering Description By the combination of SOM897 and 898 setting, the expansion width of Tier Range upper I/O value (IOPH) can be changed as follows. MCU/ RCU Default OFF . OFF .
Mode 900 Category Volume Migration Description In combination with the SOM8 99 setting, whether to execute and when to start the I/O synchronous copy change as follows. MCU/ RCU Default OFF . Mode 900= ON: SOM 899 is ON: I/O synchronous copy starts without retrying Volume Migration. SOM900 is OFF: I/O synchronous copy starts when the threshold of Volume Migration retry is exceeded.
Mode 908 Category Universal Replicator Description The mode can change CM capacity allocated to MPBs with different workload. Mode 908 = ON: The difference in CM allocation capacity among MPBs with different workload is large. Mode 908 = OFF (default): Difference in CM allocation capacity among MPBs with different workload is small. (Existing operation) Note: 1.
Mode 917 Category Dynamic Provisioning, Dynamic Tiering Description The mode is used to switch the method to migrate data at rebalancing. MCU/ RCU Default ON . Mode 917 = ON (default): Page usage rate is averaged among parity groups or external volume groups where pool volumes are defined. Mode 917 = OFF: Page usage rate is averaged among pool volumes without considering parity groups or external volume groups. Note: 1.
Mode Category 930 Dynamic Provisioning, Hitachi Thin Image Description Default MCU/ RCU When the mode is set to ON, all of the zero data page reclamation operations in processing are stopped. (Also the zero data page reclamation cannot be started.) * Zero data page reclamation by WriteSame and UNMAP functions, and IO synchronous page reclamation are not disabled. Mode 930 = ON: All of the zero data page reclamation operations in processing are stopped at once.
Operation PDEV Addition Target of Operation - Mode 269 ON High speed Mode 269 OFF High speed System option modes Hitachi Unified Storage VM Block Module Hardware User Guide B–29
B–30 System option modes Hitachi Unified Storage VM Block Module Hardware User Guide
C Rack information This appendix provides the specifications for the Hitachi standard 19-inch “Solutions” rack and the specifications that a customer-supplied rack must meet to support a Hitachi Unified Storage VM storage system.
About the Hitachi Solutions rack Hitachi Solutions racks and can be used to mount a Hitachi Unified Storage VM system controller box and one or more drive boxes. The following figure shows views of the Hitachi rack. Table C-1: Hitachi Solutions rack basic specifications on page C-3provides the basic specifications of the rack. Table C-2: Hitachi Solutions rack specifications on page C-3provided detailed specifications of the rack.
Table C-1: Hitachi Solutions rack basic specifications Product Code A3BF-SOLUTION and A3BFSOLUTION-P Description Black Front Bezel/Lock Back Door External Dimensions (with panels) Width: 600 mm (1ft 11-1/2 in) Depth: 1100 mm (3 ft 7 in) Height: 2010 mm (6 ft 7 in) Mounting height for stroage equipment: 42U Rail kits, PDUs, and power cords with an accessory kit not included Table C-2: Hitachi Solutions rack specifications Item Specification P-code Rack with side panels: A3BF-SOLUTION Rack without side p
Item C–4 Specification Accessories 1 x Accessories (set) delivered separately in a box.
Figure C-2: Hitachi Solutions rack dimensions Power considerations The Hitachi rack is wired for 200-240V with four PDUs. • The Americas version of the rack (PDU-121112F10) comes with four preinstalled 30-amp Nema PDUs and a 10-foot power cord. The PDUs are rated for 208VAC, 50/60 Hz, 30 amps, derated to 80% for continued use (24 amps). • The APAC version of the rack (0FTQ-123C4-50) comes with four preinstalled 32-amp IEC PDUs and a 10-foot power cord.
Maximum current load. When connecting devices to the PDUs, do not exceed 12 amps per bank of four receptacles, and do not exceed 24 amps per PDU. Follow the guidelines for PDU load as specified in the appropriate Hitachi Data Systems installation documentation. To ensure maximum system availability, each PDU requires a dedicated 30A circuit. For example, a system with four PDUs, each with a 30A L630P plug, requires four 30A circuits.
Product Code Usable in Solutions rack? Description PDU-121132F10 (sourced by CTI) 12 outlet, 30A, 208V, single phase, L15-30P connector, 10-foot power cable EMEA and APAC EMEA and APAC region Yes A3CR-6363C4-50(sourced 12 outlet, 32A, 230V, single phase, by Minkels) IEC-309 connector, 10-foot power cable Yes A3CK-123123R450(sourced by Minkels) 24 outlet, 32A, 230V, single phase, IEC-309 connector, 10-foot power cable Default A3B9-123R4-50(sourced by Minkels) 12 outlet, 16A, 400V, 3-phase, IEC-
Americas1 Item RoHS: Compliant to Directive 2002/95/EC Yes International Yes Notes: 1. North and South America except Brazil, which has its own rack. 2, This is the PDU voltage rating. See Electrical specifications on page A-4 for system voltage ratings. Types of PDU plugs The following figure shows the PDU plug types that are used with the Hitachi rack.
Figure C-5: Power jumper cable (250 VAC 10A IEC320-C14) Item Description Quantity Model Applicable Safety Standard / Rating 1 Cable — PVC code UL and CSA 2 Connector A 1 EN60324-C14 For 250 VAC (10 A) 3 Connector B 1 EN60324-C13 For rack frame Rack information Hitachi Unified Storage VM Block Module Hardware User Guide C–9
Floor load ratings The floor load rating must be sufficient to support a fully loaded Hitachi rack. The total weight of a storage system in the maximum configuration is approximately 6165 lbs (2793 kg.) including the rack. Hitachi Data Systems recommend that you place the rack over a sufficient number of floor tiles to distribute the weight evenly. Note: The data in the following table was taken from measurements of a system in a controlled environment.
5. Install the M5 screw at the rear of the cabinet and tighten to the following torque: 1.0 N-m, 8.85 in-lbs. If a torque wrench is not available, tighten the screw to hold the rail firmly in place. Be careful not to overtighten. 6. Install another M5 screw at the front of the cabinet and tighten to the following torque: 8.85 inch lbs. 7. Repeat the previous step to install the rail kit on the opposite side.
Figure C-7: Rail Assembly Figure C-8: Front and side views after installation C–12 Rack information Hitachi Unified Storage VM Block Module Hardware User Guide
Installation and maintenance clearance area The following shows the installation and maintenance clearance areas for the Hitachi rack. Figure C-9: Hitachi rack clearance area Before installing a rack or equipment Before unpacking, moving, or installing a rack or any equipment in it, read the following safety information. If yo have any questions, contact appropriate personnel within your company and as needed, contact Hitachi Data Systems Technical Support.
• Do not do anything that creates a potential hazard to people or that makes the equipment or rack unsafe. • Mount the storage system starting from the bottom of the rack. If the rack will be partially filled, mount the heaviest component at the bottom of the rack. If the storage system is mounted only near the top of the rack, the rack may become unstable and fall • Adjust the position of the storage system components so that they are mounted horizontally in the center of the rack frame.
• If working near a hazardously energized part, do not work alone. Work with another person who can immediately turn off the power in an emergency. • Do not wear any metallic item such as a wristwatch with a metallic surface or metallic accessories. If you wear eyeglasses with a metallic frame, do not allow the frame to touch an uninsulated surface. • Be sure your hands and arms are dry.
• Be sure the front anti-tip stabilizing plate is installed before extending any equipment to the front. See Stabilizing the rack on page C-30 and Installing side stabilizer plates. Figure C-18: Installing and Uninstalling the Anti-Tip Stabilizing Plate on page C-33 shows an example of how to install the side stabilizer plates. See the example of Installing the Side Stabilizer Plates. • Install anti-tip stabilizing plates at the bottom left and right sides to increases rack stability.
• In an enclosed rack with a ventilation fan in the top, excessive heat generated by equipment near the bottom of the rack can be drawn upward and into the intake ports of the equipment above it in the rack. Ensure that you provide adequate ventilation for equipment at the bottom of the rack. Height considerations Rack-mount storage (or server) chassis (devices) are measured in “U's,” which is short for “units” and refers to a standard for measuring the height of a device when installed into a rack.
Placing components in the rack If mounting more than one HUS VM Drive Box, spread the storage system ratio evenly and to avoid a top-heavy installation. The following illustration shows an example of such a ratio. Smallest 1 Full Rack Spanning Racks Working with racks or components in the rack Observe the following guidelines when working with racks or components in a rack. • For all procedures, follow the given methods and sequence of steps.
Blanking panels If all the vertical mounting space in a rack is not occupied by rack-mounted products, cover the empty space with blanking panels. Otherwise, the empty gaps between the components can cause airflow changes that may adversely affect cooling within the rack. Cable guidelines • Be sure all cables are correctly and fully connected. • Do not obstruct walkways when routing cables. • Do not allow heavy material to be placed on cables.
Grounding requirements All powered equipment should be properly grounded for operation and safety. Ground integrity should be maintained for each connection made in a reliably grounded outlet, such as with the PDUs in the rack. All system cabinets and racks must be grounded to the CO GRD system, using a 6 AWG (or larger) Copper cable, terminated with listed 2-hole compression lugs.
Item Specification Note 1. Also see the system Environmental specifications on page A-8. Preparing for installation This section covers preinstallation guidelines to observe before installing the equipment in a Hitachi rack. Planning considerations The following information will help you plan an acceptable equipment rack configuration.
• An appropriate freight elevator must be available for transporting the rack to upper and lower floors. • Do not lay the rack down because the sheet metal may twist or distort. • If the rack already has storage system components mounted in it, it may be heavy (250 lbs. to approximately 1000 lbs).
Figure C-10: Example of Leveling Feet Item Description 1 Access to leveling foot to allow manual adjustment with flat-tip screwdriver 2 1” (25 mm) Hex Foot Pad 3 Jam Nut 4 Wrench (not supplied with cabinet) If access is available to the top of the leveling foot from the inside of the cabinet, a flat blade screwdriver may be used to drop the leveler down. Alternatively, you can loosen the leveler by turning it clockwise with a wrench to fit into the 1 inch hex pad.
To stabilize the rack, observe the following guidelines: • Stabilize the rack frame at its final installation location by adjusting the leveling feet. • Using an adjustable wrench, turn each leveling foot clockwise until the clearance between the caster and the floor is 2.5 mm. The full weight of the rack should be resting on the leveling feet, and not on the casters. • Adjust the leveling feet so that the tilt of the rack (forwards, backwards, left or right) becomes 0.0 ± 2 mm.
Installing a Hitachi rack The following sections provides procedures to install a Hitachi rack and to install storage system components in the rack. Note: The HUS VM storage system must be installed by trained Hitachi Data Systems personnel or trained authorized service providers. The HUS VM storage system is not a customer-installable product. Installing side stabilizer plates The following figure shows an example of how to install the side stabilizer plates.
The following procedure describes how to install the side stabilizer plates. Installing side stabilizer plates is required only when the rack is installed as a stand-alone rack system with no equipment mounted in it. The side plates keep the rack from tipping on its sides. If equipment is mounted in the rack, the use of these side stabilizer plates is optional. 1. Remove side stabilizer plates from cabinet. The side panels are grounded inside the cabinet.
To reduce the risk of injury to persons or damage to equipment, it is recommended that all equipment be removed from the rack, in order from top to bottom. Transport the rack and the components individually to the desired location. If you need to move the rack with the mounted components in it, use the pallet on which the rack was shipped to you. Be careful when loading the rack onto the pallet. Secure the rack on the pallet as it was shipped and received.
Figure C-14: Baying kit (also see details A and B) Figure C-15: Baying kit (detail A) C–28 Rack information Hitachi Unified Storage VM Block Module Hardware User Guide
Figure C-16: Baying kit (detail B) Rear baying instructions 1. Remove rear doors to access cabinet frames. 2. Look for a common notch in frames where the baying connection will be made (one at bottom and one at the top). 3. When the cabinets are even, place the hex connecting bushing. Use a 4mm hex Allen tool to put an M6 cap screw through the frame open square. This will align the internal slot to reach the hex bushing. (A magnetic tool is recommended because screws may fall off inside the frame cavity.
Figure C-17: Baying kit Item Description 1 4MM hex tool (not supplied) Magnetic type recommended 2 Hex connecting busing (supplied) 3 M6 bolts (supplied) Opening and closing the side panels The side panels can be locked and unlocked with keys supplied with the rack. Once unlocked, press the release levers inward and pull the panel outwards and lift to remove. Reverse these procedures when reinstalling the side panels.
Installing equipment in a rack This section describes how to install equipment in the Hitachi rack. The topics covered in this section are: • Installation tasks on page C-31 • Installing cage nuts on page C-32 • Installing and uninstalling the anti-tip stabilizing plates on page C-32 • Installing blanking panels on page C-34 Before installing equipment, read the safety information on page C-19.
4. When the rack is in its final destination, keep the bar bolted to the rack for maintenance and safety purposes. 5. Identify the correct power source (220V) which the equipment will be connected to, and then connect to power. 6. Install the blanking panels. 7. Reattach the side panels and rear door (if they have been removed). Installing cage nuts When installing rail kits or securing equipment to the rack, insert the cage nuts into the square holes.
Figure C-18: Installing and Uninstalling the Anti-Tip Stabilizing Plate Figure C-19: Installing and Uninstalling the Anti-Tip Stabilizing Plate (2) To install the stabilizer plate: 1. Remove the trim cover plate from bottom of bezel and set it aside for reinstallation later. 2. Unpack the stabilizer plate kit. 3. Place the stabilizer plate as shown to mate with bracket at the bottom of the frame. Using the washers, M8 screws, and tool in the kit, secure the plate to the frame.
4. Reinstall the trim cover plate with the M4 flat head screws you removed in step 1. Installing blanking panels Blanking panels should be installed to cover any empty space at the front of the rack. This will ensure adequate airflow to the equipment in the rack if the rack is not completely filled. When installing blanking panels, follow these steps: 1. Place the blanking panel on the rack as a template to determine which holes will require cage nuts. 2. Insert the cage nuts. 3.
• There are high-voltage parts in the equipment. Observe the cautionary statements in this chapter to make sure that high-voltage components are not touched during maintenance. Another person should be on alert in case the power feed to the equipment needs to be quickly turned off. • After the power feed to the equipment is shut off, electricity remains in the equipment for a period of time. Do not touch any components other than those indicated in this chapter.
C–36 Rack information Hitachi Unified Storage VM Block Module Hardware User Guide
D Regulatory Compliance This appendix includes a comprehensive set of specifications for the HUS VM storage system storage system described in this manual. The Regulatory Compliance section includes a table of regulatory specifications that are met by the HUS VM storage system. Following the tables are individual regulatory statements that explain the requirements of various countries.
Regulatory compliance This equipment has been tested and is certified to meet the following standards: Table D-1: HUS VM Certifications D–2 Mark on the product Standard Specification Country Electronic emission control FCC Part 15 Subpart B Class A Yes (FCC) U.S.
Table D-2: HUS VM Certifications, by Region Region Regulatory CB Standard IEC60950-1:2005 Worldwide Safety Certificate No. JPTUV-033033 JPTUV033033-M1 Report No. 12020365-001 12020365-002 Photo Documentation No. 12020365-001 North America cTUVus UL60950-1:2007CSA- Certificate No. C22.2 No.60950-1-07 CU 72100030 European Union TUV GS EN60950-1:2006 +A11 Certificate No. S1 50183813 Argentina IRAM IEC60950-1:2005 Certificate No. RA 3082130 E GOST GOST-R 60950-12005GOST-R 51318.
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
WARNING: This is a Class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures. WARNING: Dies ist ein Produkt der Klasse A. In nichtgewerblichen Umgebungen können von dem Gerät Funkstörungen ausgehen, zu deren Beseitigung vom Benutzer geeignete Maßnahmen zu ergreifen sind.
Recycling The cache backup battery unit includes a nickel-hydride battery. A nickel-hydride battery should be recycled when it is no longer usable. When you replace the battery unit, do not dispose of the old one in the trash. recycle the battery instead. The mark posted on the battery unit is a three-arrow mark that means a recyclable part. Electronic emissions certificates Copies of the Underwriters Laboratories EMI compliance certificates are located on the following pages.
Figure D-1: UL EMI compliance certificate (1 of 3) Regulatory Compliance Hitachi Unified Storage VM Block Module Hardware User Guide D–7
Figure D-2: UL EMI compliance certificate (2 of 3) D–8 Regulatory Compliance Hitachi Unified Storage VM Block Module Hardware User Guide
Figure D-3: UL IMI compliance certificate (1 of 3) Regulatory Compliance Hitachi Unified Storage VM Block Module Hardware User Guide D–9
D–10 Regulatory Compliance Hitachi Unified Storage VM Block Module Hardware User Guide
Glossary This glossary defines the special terms used in this document. A array See disk array. B back-end I/O module The hardware component that controls the transfer of data between the drives and cache. A back-end I/O module feature consists of a pair of boards. C controller chassis The hardware assembly that contains the logic and processing components of the HUS VM storage system, including the front-end directors, virtual storage directors, cache memory, switches, and backend directors.
drive box The hardware component of the HUS VM that houses disk drives and/or flash drives. dynamic provisioning An approach to managing storage. Instead of “reserving” a fixed amount of storage, it removes capacity from the available pool when data is actually written to disk. Also called thin provisioning. F flash drive A data drive that uses a solid-state memory device instead of a rotating hard disk drive to store information.
license key A specific set of characters that unlocks an application and allows it to be used. logical device (LDEV) An individual logical data volume (on multiple drives in a RAID configuration) in the storage system. An LDEV may or may not contain any data and may or may not be defined to any hosts. Each LDEV has a unique identifier or “address” within the storage system composed of the logical disk controller (LDKC) number, control unit (CU) number, and LDEV number.
PDU power distribution unit pool A set of volumes that are reserved for storing Copy-on-Write Snapshot data or Dynamic Provisioning write data. R RAID redundant array of independent disks. A disk array in which part of the physical storage space is used to store user data and parity information, and another part is used to store a duplicate set of user data and parity information.
service processor (SVP) The computer in a HUS VMstorage system that hosts the Storage Navigator software and is used to configure and maintain the storage system. SIM service information message SOM system option mode SSD solid state drive. See flash drive. SVP See service processor (SVP). system disk The volume from which an open-systems host boots.
B C D E A B # A C D F G H H I F JJ K L K L M N O P R S P Q R S T V W X Y Z U V Glossary–6 Hitachi Unified Storage VM Block Module Hardware User Guide
Index Symbols architecture system 2-2 back-end director 1-6 cache 1-6 certifications compliance D-2 Europe D-4 Japan D-5 US FCC D-4 chassis controller 1-3 controller, components 1-3 drive 1-7 checklist 4-3 clearances, equipment 4-5 components drive chassis 1-7 controller, components 1-3 drive chassis components 1-7 equipment clearances 4-5 equipment weight 4-6 export controls D-5 guidelines access by authorized personnel 3-2 cabling 3-2 earthquake safety 3-2 electrical safety 3-3 equipment modifications 3-2
Index–2 Hitachi Unified Storage VM Block Module Hardware User Guide
Hitachi Unified Storage VM Block Module Hardware User Guide
Hitachi Data Systems Corporate Headquarters 2845 Lafayette Street Santa Clara, California 95050-2639 U.S.A. www.hds.com Regional Contact Information Americas +1 408 970 1000 info@hds.com Europe, Middle East, and Africa +44 (0)1753 618000 info.emea@hds.com Asia Pacific +852 3189 7900 hds.marketing.apac@hds.
