Compaq StorageWorks™ RAID Array 3000 Controller Shelf Hardware User’s Guide Fourth Edition (January 2001) Part Number EK-SMCPQ-UG.
© 2001 Compaq Computer Corporation. COMPAQ, the Compaq logo and StorageWorks Registered with the U.S. Patent and Trademark Office. Microsoft, MS-DOS, Windows, and Windows NT are trademarks of Microsoft Corporation. All other product names mentioned herein may be trademarks of their respective companies. Confidential computer software. Valid license from Compaq required for possession, use or copying. Consistent with FAR 12.211 and 12.
Contents About This Guide Purpose and Scope.................................................................................................ix Intended Audience .................................................................................................ix Document Structure ...............................................................................................ix Related Documents ................................................................................................
iv RAID Array 3000 Controller Shelf Hardware User's Guide Chapter 2 RAID Array 3000 Controller Controller Overview ............................................................................................2-1 Controller Features ..............................................................................................2-3 Controller Reset and LED Indicators....................................................................2-5 Flexible RAID Set Configuration ...........................................
Contents v Chapter 4 Second Controller Option Installing the Upgrade..........................................................................................4-2 Saving the Existing Configuration .................................................................4-3 Updating Firmware .......................................................................................4-5 Shutting down the RA3000 ...........................................................................
vi RAID Array 3000 Controller Shelf Hardware User's Guide Figure 3-4. Recommended controller shelf installation (four expansion shelves)...........................................................................................3-6 Figure 3-5. RETMA cabinet shelf supports........................................................ 3-10 Figure 3-6. UPS rack-mount bracket assemblies ................................................ 3-12 Figure 3-7. UPS bracket RETMA and metric hole locations (front)...............
Contents vii List of Tables Table 1 Related Documents....................................................................................xi Table 1-1 Controller Shelf Part Numbers and Model Descriptions ........................1-4 Table 1-2 Single Host, Single Adapter, with One Active Controller ....................1-17 Table 1-3 Single Host, Single Adapter, with Two Active Controllers ..................1-18 Table 1-4 Single Host, Dual Adapter, Two Port with Two Active Controllers..........................
About This Guide Purpose and Scope This guide is designed to provide an overview for installers and operators of the Compaq StorageWorksTM RAID Array 3000 Controller Shelf User’s Guide. Intended Audience This document is written for installers and operators.
x RAID Array 3000 Controller Shelf Hardware User's Guide Chapter 2: RAID Array 3000 Controller ■ Controller Overview ■ Controller Features ■ Controller Reset and LED Indicators ■ Flexible Raid Set Configuration ■ RAID Levels Supported ■ Redundant Operation ■ Environmental Chapter 3: Installation and Maintenance ■ Installation Guidelines ■ Installing Shelves in the Cabinet ■ Power and SCSI Cable Connection Procedures ■ Controller Shelf Status LEDs ■ Controller Status LEDs ■ Replacin
About This Guide xi Related Documents In addition to this guide, the following documentation is useful to the reader: Table 1 Related Documents Document Title RAID Array 3000 Subsystem Second Controller Option Installation Guide Command Console V2.2 for the RAID Array 3000 (Pedestal and Rack Mount Models) User’s Guide RAID Array 3000 Pedestal Storage Subsystem Hardware User’s Guide Part Number EK-SM3KC-IG.E01 AA-RBF2C-TE EK-SMCPO-UG.
xii RAID Array 3000 Controller Shelf Hardware User's Guide Text Conventions This document uses the following conventions to distinguish elements of text: Keys Keys appear in boldface. A plus sign (+) between two keys indicates that they should be pressed simultaneously. USER INPUT User input appears in a different typeface and in uppercase. FILENAMES File names appear in uppercase italics. Menu Options, Command Names, Dialog Box Names These elements appear in initial capital letters.
About This Guide xiii NOTE: Text set off in this manner presents commentary, sidelights, or interesting points of information. Symbols on Equipment The following symbols are placed on equipment to indicate the presence of potentially hazardous conditions: This symbol in conjunction with any of the following symbols indicates the presence of a potential hazard. The potential for injury exists if warnings are not observed. Consult your documentation for specific details.
xiv RAID Array 3000 Controller Shelf Hardware User's Guide These symbols on power supplies or systems indicate the equipment is supplied by multiple sources of power. WARNING: To reduce the risk of injury from electric shock, remove all power cords to completely disconnect power from the system. This symbol indicates that the component exceeds the recommended weight for one individual to handle safely.
About This Guide xv Outside North America, call the nearest Compaq Technical Support Phone Center. Telephone numbers for worldwide Technical Support Centers are listed on the Compaq website. Access the Compaq website: http://www.compaq.
Chapter 1 Product Overview TM This chapter provides an overall description of the Compaq StorageWorks RAID Array 3000 Controller Shelf (controller shelf) and its components. A series of cabling diagrams showing how to connect the controller shelf to a host system and a list of technical and environmental specifications is also included at the end of the chapter. NOTE: This guide is the Hardware User’s Guide.
1-2 RAID Array 3000 Controller Shelf Hardware User’s Guide The controller shelf can be connected to one or up to four 6-slot device expansion shelves to form the complete RAID Array 3000 storage system (see Figure 1– 2). The Compaq StorageWorks BA356 Series Device Expansion Shelf (device expansion shelf) is offered as an option with a minimum of one shelf required.
Product Overview 1-3 Figure 1-2 shows the RAID Array 3000 6-slot Device Expansion Shelf (optional). SHR-1091 Figure 1-2. RAID Array 3000 6-slot Device Expansion Shelf (optional) A battery-backup subsystem is included with the controller shelf in the form of a rackmount Uninterruptable Power Supply (UPS). In case of a power failure, the UPS provides temporary power to the storage system while it flushes its cache contents to disks.
1-4 RAID Array 3000 Controller Shelf Hardware User’s Guide Table 1-1 Controller Shelf Part Numbers and Model Descriptions COMPAQ Part No.
Product Overview 1-5 Table 1-1 Controller Shelf Part Numbers and Model Descriptions continued COMPAQ Part No. Item Description DS-SWXRA-GN RA3000 UltraSCSI rackmount 6-Slot storage expansion shelf which includes: 16-bit shelf assembly, two 180 watt power supply SBBs, 16-bit personality I/O assembly, shelf rack mounting kit, power cords, user documentation. DS-HSZ22-AA RA3000 second controller option which includes: DS-HSZ22-AA SCSI controller, three 16-MB SIMM modules, 0.
1-6 RAID Array 3000 Controller Shelf Hardware User’s Guide Controller Shelf Features The controller shelf is equipped with a dual-channel RAID controller that supports all of the UltraSCSI bus features.
Product Overview 1-7 Figure 1– 3 shows the major components in the controller shelf. Its characteristics are outlined below.
1-8 RAID Array 3000 Controller Shelf Hardware User’s Guide Shelf Cabinet The controller shelf can be mounted in a StorageWorks metric or RETMA style cabinet. You must install the appropriate shelf rail kit hardware to properly mount the shelf in the cabinet. The RETMA rail kit is supplied with the shelf and contains the installation guide, which describes the installation procedure. The rail kit for a metric cabinet is optional.
Product Overview 1-9 The controller shelf contains the following features: ■ Single PCB form factor for inclusion in the shelf ■ Support for dual hot-swap controller operation ■ Dual differential Ultra-Wide SCSI host channels ■ Dual single-ended Ultra-Wide SCSI disk channels ■ RAID level 0, 1, 0+1, 4, 5, and JBOD support ■ Voltage/temperature monitoring and support ■ Cluster support for specific operating systems ■ 32 logical unit numbers (LUNs) per host channel (Windows is limited to eight
1-10 RAID Array 3000 Controller Shelf Hardware User’s Guide Figure 1-5 shows the Device I/O module. Upper Mounting Tab Device Port 0 Connector Device Port 1 Connector Lower Mounting Tab SHR-1045 Figure 1-5. Device I/O module The dual-channel device I/O module has two 68-pin VHDCI female connectors mounted on the front panel (see Figure 1– 5). The upper connector is the device port 0 connector. The lower connector is the device port 1 connector.
Product Overview 1-11 Figure 1-6 shows the Device I/O module blower-status LEDs. Left Blower LED Right Blower LED SCSI Bus Address Switch S3 (Not Used) SCSI Bus Termination Switch S4 SHR-1046 Figure 1-6. Device I/O module blower-status LEDs NOTE: The SCSI bus address switch on the controller shelf device I/O module does not control the target addresses of the SBB slots in the device expansion shelves. This switch has been electrically disabled by design.
1-12 RAID Array 3000 Controller Shelf Hardware User’s Guide Host I/O Module The controller shelf contains two identical host I/O modules (see Figure 1– 7). The module located directly to the left of the device I/O module is designated as H1 and the module in the adjacent slot as H0. The host I/O module provides the interface between the host bus and the controller in the shelf. Host Out Host In CTR UPS SHR-1036 Figure 1-7.
Product Overview 1-13 In addition to the front panel connectors, the Host I/O module contains three passive differential SCSI bus terminators that terminate the SCSI bus from the host system. Termination is automatically disabled when a cable is connected to the Host Out connector. The UPS serial connector on the host I/O module (designated CTR 0 and CTR 1) provides shelf status information to the UPS.
1-14 RAID Array 3000 Controller Shelf Hardware User’s Guide Controller Shelf Power Supplies The controller shelf has two interchangeable, air-cooled, 180 watt AC power supply SBBs (see Figure 1– 8) located in the left two SBB slots of the shelf. The power supplies provide redundant power if one of the units should malfunction. Each supply provides +5 and +12 VDC to power the RAID controllers, the host I/O modules, the device I/O module, and the blowers.
Product Overview 1-15 The major features of the UPS include Battery Management Technology (doubles battery life and speeds recharge time), hot-plug batteries to simplify service, voltage regulation, power control which enables scheduled shutdowns and maximized run time, and network surge protection. The front panel display has user controls (LEDs and control buttons) and the rear panel contains an RS-232 COMM port which provides UPS status to the electronics in the controller shelf.
1-16 RAID Array 3000 Controller Shelf Hardware User’s Guide Connecting the Controller Shelf to a Host System This section shows how to connect four possible controller shelf/host configurations.
Product Overview 1-17 Figure 1-9 shows a diagram of a Single Host, Single Adapter, with one Active Controller. Host System Host Adapter shr-1316b Figure 1-9.
1-18 RAID Array 3000 Controller Shelf Hardware User’s Guide Figure 1-10 shows a diagram of a Single Host, Single Adapter, with two Active Controllers. 2 Host System Host Adapter shr-1317b Figure 1-10.
Product Overview 1-19 Figure 1-11 shows a diagram of a Single Host, Dual Adapter, Two Ports with two Active Controllers. Host System Host Adapter Host Adapter shr-1318b Figure 1-11.
1-20 RAID Array 3000 Controller Shelf Hardware User’s Guide Figure 1-12 shows a diagram of a Dual Host, Single Adapter, with one Active Controller per Host. Host System Host Adapter Host System Host Adapter shr-1319b Figure 1-12.
Product Overview 1-21 Specifications Table 1-6 Controller Shelf Technical Specifications Description Feature Model RA3000 rack mount controller shelf (DS-SWXRA-GH, -GK) RA3000 rack mount disk shelf (DS-SWXRA-GN) Controller shelf description BA356 style shelf with one HSZ22 controller, two 180 watt power supplies, two host I/O modules, one-dual channel Wide-Ultra, single-ended personality module, blue Disk controller shelf BA356 disk SBB shelf with two 180 watt power supplies, one single channel Wide-
1-22 RAID Array 3000 Controller Shelf Hardware User’s Guide Table 1-6 Controller Shelf Technical Specifications continued Description Feature Sustained RAID 5 I/O rate— 2 KB block transfers Read - 1,375 I/O per second per controller pair Write – 392 I/O per second per controller pair RAID levels supported 0, 1, 0+1, 4, 5 Non-RAID disk support (JBOD) Yes Reconstruct time Configurable with SWCC Stripe size/chunk size Variable Maximum logical drives (LUNs) Up to 30 RAID sets Up to 16 redundancy gr
Product Overview 1-23 Table 1-6 Controller Shelf Technical Specifications continued Description Feature RAID manger GUI support StorageWorks Command Console V2.2 (SWCC) available for all platforms. Regulatory approvals EMI/R I— FCC Class A, CSA 108.8 Class A, VCCI level 1, BICQ Class A, CISPR-22 Class A, C-Tick Class A rd Safety— UL 1950 3 edition, AS/NZ 3260, IEC 950 CSA 22.
1-24 RAID Array 3000 Controller Shelf Hardware User’s Guide Table 1-7 Controller Shelf Power and Physical Specifications Operating Environment Specification Power required 110-120/220-240 VAC, 50/60 Hz, single phase, two 180 Watt power modules @ 2.5 / 1.
Product Overview 1-25 Table 1-7 Controller Shelf Power and Physical Specifications continued Operating Environment Specification Height 150 cm (5.9 in) /4U 8.9mm (3.5 in) /2U Width 445 cm (17.5 in) 48.2mm (19 in) Depth 350 cm (13.8 in) 40.6mm (16.0 in) Weight Controller shelf 9.5kg (21 lb.) Disk shelf 7.3 kg (16 lb.) UPS 27kg (59.5 lb.
Chapter 2 RAID Array 3000 Controller This chapter describes the major features and characteristics of the Compaq StorageWorks RAID Array 3000 Controller (Controller) in the controller shelf. Controller Overview The controller provides high performance, high-availability access to SCSI disk array subsystems along a Wide-Ultra SCSI bus. With a modular hardware design and an intuitive configuration utility, the controller is designed to meet a wide range of storage needs.
2-2 RAID Array 3000 Controller Shelf Hardware User’s Guide The controller has two Single Inline Memory Module (SIMM) connectors. The connectors form a mirrored pair when the controllers are configured in a redundant controller configuration; otherwise they are fully accessible by the controller. In a redundant controller setup, both controllers must have identical cache configurations, and the total usable cache per controller will be half the amount installed.
RAID Array 3000 Controller 2-3 There are two configurations for redundant pairs of controllers: active/active failover mode and active/passive failover mode. In active/active failover, each controller in the redundant pair has one active SCSI host port and one passive SCSI host port. Redundancy groups (virtual LUNS) can be mapped to only one active host port and are not accessible from the passive port or the other controller (that is, partitioned model).
2-4 RAID Array 3000 Controller Shelf Hardware User’s Guide From the storage shelf’s perspective, the controller receives the I/O requests from the host and directs them to the devices. Since the controller processes all the I/O requests, it eliminates the host-based processing that is typically associated with reading and writing data to multiple storage devices.
RAID Array 3000 Controller 2-5 ■ Stripesets (RAID 0) combine disk drives in serial to increase transfer or requests rates. ■ Mirrorsets (RAID 1) combine disk drives in parallel to provide a highly reliable storage unit. ■ RAID 4 provides striping with a fixed parity drive. ■ RAIDsets (RAID 5) combine disk drives in serial— just like stripesets— but also store parity data to ensure high reliability.
2-6 RAID Array 3000 Controller Shelf Hardware User’s Guide Figure 2– 4 shows the Front Panel of the controller. Reset H0 H1 D0 D1 Fault Reset H0 H1 D0 D1 Fault SHR-1049 Figure 2-4. Controller front panel Flexible RAID Set Configuration In addition to its flexible hardware design, the controller’s firmware offers the user the flexibility to configure RAID sets in several different ways: ■ RAID sets can comprise drives from any drive channel and SCSI ID.
RAID Array 3000 Controller 2-7 ■ Any drive may be designated as a spare. Spares are global, meaning that in the event of a drive failure, the controller will search for the first available spare on any channel or SCSI ID and automatically begin rebuilding the failed drive’s data. ■ All configuration and monitoring of RAID sets are accomplished via SWCC with software platform kit. The controller employs a number of techniques to achieve as much performance as possible from its design.
2-8 RAID Array 3000 Controller Shelf Hardware User’s Guide NOTE: The controller will not operate without at least one 16 MB SIMM installed in its cache. Nor will it operate without a UPS power supply connected to the controller. Without a UPS, data stored in the cache, but not yet written to the disk drives, would be lost in the event of a power interruption.
RAID Array 3000 Controller 2-9 RAID Levels Supported The controller supports the following RAID levels: Table 2-2 Raid Levels Supported RAID Level Description 0 Striping without parity 1 Mirroring 0+1 Striping and mirroring 4 Striping with fixed parity drive 5 Striping with floating parity drive JBOD just a bunch of drives There are some restrictions you must adhere to when creating a RAID set using the RAID 3000 shelf.
2-10 RAID Array 3000 Controller Shelf Hardware User’s Guide RAID 0 RAID 0 breaks up data into smaller chunks and writes each chunk to a different drive in the array. The size of each chunk is determined by the controller’s chunk size parameter, which you set in the course of creating a RAID set. The advantage of RAID 0 is its high bandwidth. By breaking up a large block of data into smaller chunks, the controller can use multiple drive channels to write the chunks to the disk drives.
RAID Array 3000 Controller 2-11 RAID 1 RAID 1 (also known as mirroring or shadowing) takes data sent by the host and duplicates it on all the drives in an array. The result is a high degree of data availability, since you can lose all but one drive in the array and still have full access to your data. This comes at a price: a RAID 1 array requires multiple drives to achieve the storage capacity of a single drive. Figure 2– 6 shows a RAID 1 write.
2-12 RAID Array 3000 Controller Shelf Hardware User’s Guide RAID 0+1 RAID 0+1 (see Figure 2– 7) combines RAID 0 (striping) with RAID 1 (mirroring). In RAID 0+1 write, the controller breaks up the data block from the host into smaller chunks, then writes the chunks to half the drives in the array, while writing duplicate chunks to the remaining drives.
RAID Array 3000 Controller 2-13 When the controller creates a RAID 0+1 set, it first sorts the drives by channel number and SCSI ID. Then it stripes the data across every other drive and forms a mirrored pair with the first two drives, another mirrored pair with the second two drives, and so on. Table 2– 4 lists how the controller uses the drives in a RAID 0+1 set.
2-14 RAID Array 3000 Controller Shelf Hardware User’s Guide RAID 4 RAID 4 breaks up host data into chunks, calculates parity by performing an exclusive-or on the chunks, and then writes the chunks to all but one drive in the array and the parity data to the last drive (Figure 2– 8). When the host requests data from the disk drives, the controller retrieves the chunks containing the addressed data, reconstitutes the data from the chunks, and passes the data to the host.
RAID Array 3000 Controller 2-15 In the event of a single drive failure, a RAID 4 array will continue to operate in degraded mode. If the failed drive is a data drive, writes will continue as normal, except no data will be written to the failed drive. Reads will reconstruct the data on the failed drive by performing an exclusive-or operation on the remaining data in the stripe and the parity for that stripe. If the failed drive is a parity drive, writes will occur as normal except no parity will be written.
2-16 RAID Array 3000 Controller Shelf Hardware User’s Guide RAID 5 RAID 5 addresses the bottleneck issue for barrages of widely scattered, small I/O operations (Figure 2– 9). Like RAID 4, RAID 5 breaks up data into chunks, calculates parity, and then writes the chunks in stripes to the disk drives, saving one drive one each stripe for the parity data. Unlike RAID 4, however, RAID 5 changes the parity drive on each stripe.
RAID Array 3000 Controller 2-17 While RAID 5 is ideally suited for applications with many, small I/O operations, there is no reason why it cannot function equally well for applications with large, sequential I/O operations. This makes RAID 5 an excellent all-purpose RAID level. CAUTION: RAID 5 can withstand a single failure and handle I/O activity without interruption in degraded mode until the failed drive is rebuilt.
2-18 RAID Array 3000 Controller Shelf Hardware User’s Guide Initialization During initialization, the firmware in the RAID 3000 verifies that both controllers have consistent configurations including identical memory cache and system parameters. If the controller setups are incompatible, the set is not bound and each controller operates in stand-alone mode. Message Passing Information is shared between the two controllers by a collection of messages passed through the backplane connectors.
RAID Array 3000 Controller 2-19 Environmental The controller incorporates a set of on board sensors to detect abnormal operating conditions that may affect data safety. Backup Power Management The controller must be connected to the UPS to prevent the subsystem cache from being corrupted during unexpected losses of power. If no backup power supply is provided, the controller will remain off-line and reject all I/O requests with a status of Check Condition/Hardware Error.
Chapter 3 Installation and Maintenance This chapter describes how to install the controller shelf in a RETMA or metric-style storage cabinet and then make the cable connections to the Uninterruptable Power Supply (UPS), Device expansion shelves and host system. The maintenance section describes how to interpret the status of the LEDs on the front panel of the controller shelf. The chapter also describes how to replace a Field Replaceable Unit (FRU).
3-2 RAID Array 3000 Controller Shelf Hardware User’s Guide Use the following guidelines when installing the controller and device expansion shelves. They apply to both RETMA and metric cabinet designs. ■ For stability and safety, arrange the components in the cabinet using a bottom-up approach. ■ Cable length is critical when locating the shelves in the cabinet. Keep shelves grouped together to minimize cable length problems.
Installation and Maintenance 3-3 The target SCSI bus addresses of the drives in the device expansion shelves (shown on each storage device in Figures 3-1 through 3-4) are controlled by a switch on the side of the personality I/O module in each expansion shelf. In a single expansion shelf configuration, the IDs are 0-5. In a double expansion shelf configuration, the IDs in both expansion shelves are also 0-5 because each shelf is connected to a separate device I/O bus from the controller.
3-4 RAID Array 3000 Controller Shelf Hardware User’s Guide Figure 3-2 shows the Recommended Controller Shelf Installation (two expansion shelves). P / S P / S 5 4 3 2 1 0 P / S P / S 5 4 3 2 1 0 P / S P / S SHR-1097 Figure 3-2.
Installation and Maintenance 3-5 Figure 3-3 shows the Recommended Controller Shelf installation (three expansion shelves). P / S P / S 13 12 11 10 9 8 P / S P / S 5 4 3 2 1 0 P / S P / S 5 4 3 2 1 0 P / S P / S SHR-1098 Figure 3-3.
3-6 RAID Array 3000 Controller Shelf Hardware User’s Guide Figure 3-4 shows the Recommended Controller Shelf installation (four expansion shelves). P / S P / S 13 12 11 10 9 8 P / S P / S 13 12 11 10 9 8 P / S P / S 5 4 3 2 1 0 P / S P / S 5 4 3 2 1 0 P / S P / S SHR-1099 Figure 3-4.
Installation and Maintenance 3-7 Installing Shelf Supports After you determine the desired shelf slot locations in your cabinet, install the shelf support mounting kits supplied with the shelves. Shelf support mounting kits for the RETMA and metric style cabinets are included with each shelf assembly. The UPS is rack mounted using custom adjustable rail brackets. Table 3–1 lists the shelf support mounting kits and identifies the documents and procedures that contain the instructions needed to install them.
3-8 RAID Array 3000 Controller Shelf Hardware User’s Guide Installing Shelf Supports in a RETMA Cabinet (Round Hole) Use the following procedure to install the shelf support kit into a RETMA cabinet with round holes in the mounting rails (see Figure 3-5). 1. Open the kit and ensure it contains the items listed in Table 3-2. Table 3-2 RETMA Cabinet Shelf Support Parts List Item # å ê ñ ò ô Part Number Description Qty. 74-46419-01 Shelf retainer bracket, (0.25 in.
Installation and Maintenance 3-9 10. Install two shelf retainer brackets (item 1, Figure 3-5) to the left and right rails of the cabinet and secure with two screws. The controller shelf is now safely mounted in the cabinet. Installing Shelf Supports in a RETMA Cabinet (Square Hole) Use the following procedure to install the shelf supports into a RETMA cabinet with square holes in the mounting rails (see Figure 3-5). 1. Open the kit and ensure it contains the items listed in Table 3-2. 2.
3-10 RAID Array 3000 Controller Shelf Hardware User’s Guide 10. Install two shelf retainer brackets (item 1, Figure 3-5) to the left and right rails of the cabinet and secure with two screws. The controller shelf is now safely mounted in the cabinet. Figure 3-5. RETMA cabinet shelf supports Installing UPS Brackets The shelf brackets that support and secure the UPS in the cabinet are a custom design. The following procedure describes how to install the rack-mount brackets.
Installation and Maintenance 3-11 Table 3-3 UPS Rack-mount Bracket Mounting Hardware List Cabinet Style Hardware Item Part Number RETMA (round hole) Screw 90-00063-39 U-Nut 90-07786-00 Screw 90-40331-01 Cage Nut 90-11476-01 Washer 90-06664-00 RETMA (square hole) Figure 3-6 shows the left and right-hand UPS bracket assemblies. Figures 3-7 and 3-8 illustrate the front and rear bracket-mounting holes for both cabinet designs. Refer to these figures throughout the bracket installation procedure.
3-12 RAID Array 3000 Controller Shelf Hardware User’s Guide 3. If installing into a RETMA cabinet, align the left-hand bracket “E” holes with the corresponding holes in the cabinet (extend rear of bracket beyond rail for installation), insert two screws, and secure to cabinet with a cage nut or U-nut. Figure 3-6. UPS rack-mount bracket assemblies Figure 3-7. UPS bracket RETMA and metric hole locations (front) 4.
Installation and Maintenance 3-13 6. Ensure both brackets are level and tighten all hardware. 7. Carefully lift and insert the UPS onto the brackets and push the unit back into the cabinet until the mounting holes in each flange align with the corresponding holes in the cabinet. 8. Secure the front panel of the UPS to the cabinet (see Figure 3-8 for correct holes) using two SST flat-washers and screws. 9. Connect the UPS power cord to the AC power strip. Figure 3-8.
3-14 RAID Array 3000 Controller Shelf Hardware User’s Guide NOTE: All four cabling procedures describe how to connect your subsystem to a single host via the host I/O module 0 connector on the controller shelf. The procedures are the same for host I/O module 1. Also, no connections are shown to the Host Out connector on the I/O module. This connector is electrically the same as Host In and is used for mid-bus connections in a multiple-host configuration.
Installation and Maintenance 3-15 Cabling a Single Device Expansion Shelf Subsystem 1. Ensure the physical installation phase of installing and securing shelf brackets and shelves (including the UPS) has been accomplished and that the shelves are secured within the shelf bracket the shelf lock provided. 2. Remove the device I/O module from the controller shelf and ensure the switch positions of SCSI bus termination switch S4 are set as shown in Figure 3-9. Replace the module in the controller shelf. 3.
3-16 RAID Array 3000 Controller Shelf Hardware User’s Guide CAUTION: To prevent possible damage to the equipment, the input voltage level of the UPS must be set to your specific line voltage before proceeding. Refer to the UPS manual and set the input level to your AC power sources. 12. After the UPS has been set to the correct input voltage level, set the UPS low-battery warning option to five minutes (refer to the UPS manual for instructions). 13.
Installation and Maintenance 3-17 Figure 3-10 shows the AC Power wiring diagram. To Device Expansion Shelves 2, 3, and 4 DEVICE EXPANSION SHELF #1 P/S A P/S B CONTROLLER SHELF P/S A Host 0 I/O Module P/S B UPS UPS Control (17-04729-01) Gray Power Cords AC Power Receptacles UPS Black Power Cords AC Power Source SHR-1116 Figure 3-10. AC power wiring diagram NOTE: Dip switch position is down, white and black position is up.
3-18 RAID Array 3000 Controller Shelf Hardware User’s Guide Cabling a Two Device Expansion Shelf Subsystem 1. Ensure the physical installation phase of installing and securing shelf brackets and shelves (including the UPS) has been accomplished and that the shelves are secured within the shelf bracket the shelf lock provided. 2. Remove the device I/O module from the controller shelf and ensure the switch positions of SCSI bus termination switch S4 are set as shown in Figure 3-9.
Installation and Maintenance 3-19 12. Install jumper connector 12-49700-01 to the controller shelf UPS connector on the host 1 I/O module.
3-20 RAID Array 3000 Controller Shelf Hardware User’s Guide Cabling a Three Device Expansion Shelf Subsystem 1. Ensure the physical installation phase of installing and securing shelf brackets and shelves (including the UPS) has been accomplished and that the shelves are secured within the shelf bracket the shelf lock provided. 2. Remove the device I/O module from the controller shelf and ensure the switch positions of SCSI bus termination switch S4 are set as shown in Figure 3-9.
Installation and Maintenance 3-21 12. Connect the maintenance serial control cable (17-04730-01) from the CTR 0 connector on the controller shelf host 0 I/O module to the corresponding connector on the maintenance PC.
3-22 RAID Array 3000 Controller Shelf Hardware User’s Guide Cabling a Four Device Expansion Shelf Subsystem 1. Ensure the physical installation phase of installing and securing shelf brackets and shelves (including the UPS) has been accomplished and that the shelves are secured within the shelf bracket the shelf lock provided. 2. Remove the device I/O module from the controller shelf and ensure the switch positions of SCSI bus termination switch S4 are set as shown in Figure 3– 9.
Installation and Maintenance 3-23 12. Connect a fourth 0.5-meter SCSI cable (BN37A-0E) from the other connector on the adapter connected to shelf # 2 to the SCSI connector on the front of the personality I/O module on the device expansion shelf # 4.
3-24 RAID Array 3000 Controller Shelf Hardware User’s Guide 15. Connect the UPS serial control cable (17-04729-01) from the UPS connector controller shelf host 0 I/O module to the like connector on the UPS. 16. Install jumper connector 12-49700-01 to the controller shelf UPS connector on the host 1 I/O module. CAUTION: To prevent possible damage to the equipment, the input voltage level of the UPS must be set to your specific line voltage before proceeding.
Installation and Maintenance 3-25 The amber shelf status LED is normally off. If an error condition occurs, the LED turns on and an audible alarm sounds notifying the operator that an error condition exists. Once the user has been notified and is aware of an error, the alarm disable toggle switch enables the operator to disable the audible alarm by using the switch. Fault LED DC Power (Amber) LED (Green) SHR-1063 Figure 3-14.
3-26 RAID Array 3000 Controller Shelf Hardware User’s Guide Replacing Field Replaceable Units (FRUs) This section describes how to replace an FRU in the controller shelf. The information is divided into the following subsections: ■ Replacing a Host I/O or Device I/O SBB in the controller shelf ■ Replacing a shelf power supply SBB ■ Replacing the RAID controller ■ Replacing the UPS ■ Replacing a blower.
Installation and Maintenance 3-27 Figure 3-15 is an exploded view that shows the FRUs in the controller shelf. Table 3-4 lists the units and their corresponding part numbers. 5 1 2 3 4 SHR-1052 Figure 3-15. Controller shelf FRUs Table 3-4 Controller Shelf Field Replaceable Units Item # å ê * Qty.
3-28 RAID Array 3000 Controller Shelf Hardware User’s Guide Replacing a Host or Device I/O SBB CAUTION: When you remove an SBB, the airflow through the shelf is reduced. Always install the replacement unit immediately to prevent overheating. 1. Ensure the SCSI bus connected to the SBB is quiescent (no I/O activity). 2. Disconnect the cables (or jumper) from the front panel of the SBB. 3.
Installation and Maintenance 3-29 Replacing a Power Supply SBB CAUTION: When you remove a power supply, the airflow through the shelf is reduced. Always install the replacement unit immediately to prevent overheating. You can replace an AC power supply without affecting shelf operation using the following procedure: 1. Remove the AC input power cable from the shelf power supply. 2. Squeeze the mounting tabs to release the unit and pull it out of the shelf. 3.
3-30 RAID Array 3000 Controller Shelf Hardware User’s Guide Replacing the RAID Controller CAUTION: When you remove the controller, the airflow through the shelf is reduced. Always install the replacement unit immediately to prevent overheating. 1. Ensure the SCSI bus connected to the SBB is quiescent (no I/O activity). 2. Grip the two locking latches on the front panel of the controller and pull them forward until the controller disengages from its mounting slot (Figure 3-17). 3.
Installation and Maintenance 3-31 Replacing the UPS Proceed as follows to replace the UPS: 1. Ensure the UPS power switch is set to Off. 2. Disconnect the shelf power cords from the rear receptacles on the UPS. 3. Disconnect the UPS power cord from the wall outlet. 4. Disconnect the serial control cable from the controller shelf. 5. Remove the screws that secure the front panel of the UPS to the cabinet. 6. Remove the UPS. 7.
3-32 RAID Array 3000 Controller Shelf Hardware User’s Guide If you can access the blowers from the rear of the cabinet, proceed as follows: 1. Use a Phillips-head screwdriver to remove the safety screw in the upper right corner or lower left corner of the blower (see Figure 3-18). 2. Press the upper and lower blower mounting tabs together to release the blower. 3. Pull the blower straight out to disconnect it from the shelf power connector. 4.
Installation and Maintenance 3-33 If you cannot access the blowers from the rear of the cabinet, proceed as follows: 1. Disconnect the cables from the front of the controller shelf and remove the shelf from the cabinet. 2. Use a Phillips-head screwdriver to remove the safety screw in the upper right corner or lower left corner of the blower. 3. Press the upper and lower blower mounting tabs together to release the blower. 4. Pull the blower straight out to disconnect it from the shelf power connector. 5.
3-34 RAID Array 3000 Controller Shelf Hardware User’s Guide 1. Power down the controller shelf first (via SWCC) and then power down the UPS. 2. Grasp the latches on the front of the controller and pull them forward until the controller disengages from the shelf (see Figure 3-17). 3. Remove the controller from the shelf and place it on a flat working surface. 4.
Installation and Maintenance 3-35 Figure 3-21 shows how to remove the installed SIMM module. Figure 3-21. Remove installed SIMM modules CAUTION: Ensure that “ side 1” of the two replacement SIMMs is facing you when installing the modules in the following step. 5. Install the two replacement memory modules by aligning the module and connector pins (check alignment guide in center of module) and gently pivot the module into the main controller board until it snaps into place (see Figures 3-19 and 3-20). 6.
3-36 RAID Array 3000 Controller Shelf Hardware User’s Guide 8. Check the activity LEDs on the front panel of the controller. The reset switch/LEDs should begin to flash at a half-second rate (heartbeat) and the host activity LEDs should flash. Figure 3-22. Install replacement SIMM Figure 3-23.
Chapter 4 Second Controller Option This chapter describes how to install a second RAID controller in the RAID Array 3000 Controller Shelf (controller shelf). The second controller option adds a fail/safe feature to your storage subsystem. The chapter also contains a procedure describing how to configure the subsystem for dual-controller operation when only one serial port is available on the host.
4-2 RAID Array 3000 Controller Shelf Hardware User’s Guide Perform an inventory of the items contained in the second controller kit option.
Second Controller Option 4-3 Saving the Existing Configuration NOTE: You must save the subsystem configuration using the StorageWorks Command Console Client (SWCC) before performing the installation procedure. Otherwise, the RAID controller may lose your configuration. To save your current configuration: Select the Storage pull-down menu from the Toolbar, click Controller, select Configuration, and then Save (see Figure 4-1). Figure 4-1.
4-4 RAID Array 3000 Controller Shelf Hardware User’s Guide A Save Configuration dialog box appears as shown in Figure 4-2. The example in Figure 4-2 shows the Save to File name as c:\config1. 1. Type your file name and click Save. Figure 4-2. Save Configuration dialog box Updating Firmware CAUTION: If the systems disk is on the RA3000, firmware cannot be upgraded with SWCC.
Second Controller Option 4-5 The Firmware Update dialog box will appear (see Figure 4-4) asking you to specify the firmware file that you want to load. This file resides on the CD supplied with the controller kit option. You can easily identify firmware software by its .FDI extension. Type the .FDI filename (for example, D:\FIRMWARE\XXX.FDI), then click Start Update. Upon completion of the firmware update, the system will automatically reboot and update the controller’s firmware. Figure 4-4.
4-6 RAID Array 3000 Controller Shelf Hardware User’s Guide 6. Select menu item (2), “Change serial baud rate”. Select 38400. When presented with the “Please change your baud rate and press Return ” message, do so from within HyperTerminal via the File\Properties menu, then select Configure. If there is no response from the utility after changing the baud rate, proceed with step 7. 7. After changing the baud rate, you may have to close and re-enter HyperTerminal.
Second Controller Option 4-7 Installing Two SIMMs into Second Controller 1. Install two of the SIMM modules into the second controller (make sure all SIMM modules are of the same type) by aligning the connector pins and inserting the modules into connectors as shown in Figure 4-5. Figure 4-5. Insert SIMM into connector 2. Ensure the SIMM is firmly seated and then gently pivot it toward the controller board until it snaps into place as shown in Figure 4-6. Figure 4-6.
4-8 RAID Array 3000 Controller Shelf Hardware User’s Guide Replace Existing Controller 1. Replace the existing controller with the new controller (see Figure 4-7 to remove). SHR-1062 Figure 4-7. Remove controller from top slot NOTE: Ensure you install the new controller in the same slot as the existing controller removed in step 1 above. Do not leave the existing controller in the controller shelf while performing the following step. 2.
Second Controller Option 4-9 Restoring the Configuration To restore your configuration to the new controller: 1. Restart the SWCC in the Serial Mode (refer to the Getting Started RAID Array 3000 Installation Guide for instructions). 2. Select the Storage pull-down menu from the Toolbar, then choose Controller. 3. From the Controller pull-down menu, select Configuration and then Restore (Figure 4-8). Figure 4-8.
4-10 RAID Array 3000 Controller Shelf Hardware User’s Guide The Restore Configuration dialog box with a Restore from File field appears as shown in the example of Figure 4-9. Figure 4-9. Restore Configuration dialog box NOTE: Restoring the configuration in the following step may take up to 5 minutes. 1. Enter the file name that you saved in “Saving the Existing Configuration” and click Restore. Updating the Firmware on a Second Controller 1.
Second Controller Option 4-11 4. To check that the controller pair is in redundant mode, click the Controller icon. Properties for both controllers will be visible. Firmware revision of both controllers must be identical. If either controller is shown in gray, refer to the Getting Started RAID Array 3000 Installation Guide for more detailed instructions.
4-12 RAID Array 3000 Controller Shelf Hardware User’s Guide 5. Select Setup Parameters from the main menu. 6. Select Rdnt Ctrlr Parameters and change the value of Host I/O Channel 1 to Passive. Press the Ctrl+Z keys to exit. 7. Transfer the serial cable to the serial port on the bottom controller and press the Ctrl+Z keys. When the Monitor Utility screen appears, press any key to continue. 8. Select Setup Parameters and then select Rdnt Ctrlr Parameters from the main menu. 9.
Second Controller Option 4-13 5. Click the Serial button in the HSZ22 Management window. 6. Click the serial port available on the host’s workstation and then click the Connect button. 7. When the second connection window appears, click Cancel. Once the connection is established, a storage window will appear with the connected port identified at the top of the window. 8. From the Storage menu, select Add Virtual Disk. Select JBOD from the menu (you may select any RAID level you wish) and then select Next.
4-14 RAID Array 3000 Controller Shelf Hardware User’s Guide Refer to the Getting Started RAID Array 3000 Installation Guide to configure the virtual disks as communications LUNs. Connecting to Your Dual-Controller Storage System 1. Open the StorageWorks Management Utility. 2. Refer to the Getting Started RAID Array 3000 Installation Guide for instructions describing how to connect the RA3000 to your host system.
