hp surestore direct backup engine xp xp48 xp512 user’s guide
notice safety notices © 2002, Hewlett-Packard Company. Any servicing, adjustment, maintenance, or repair must be performed only by authorized servicetrained personnel. E0302 B9560-96001 rev.2 Hewlett-Packard Company makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.
contents About this guide Revision history Technical support Warranty statement 1 Contents Backup solutions 11 Overview of Direct Backup Engine Direct Backup Engine Components Open-System Host Server XP Disk Array and Volumes (LUs) Backup Devices Port Groups (Initiator Ports and Target Ports) Fibre-Channel Cable Connections XP Remote Console PC and Software Options Configurations 5 6 7 8 12 13 14 15 17 18 19 20 21 2 Preparing for Direct Backup Engine Operations 23 System Requirements 24 Port Requireme
Troubleshooting 39 Calling the Support Center Specifications 4 Glossary 45 Index 47 41 43 HP Surestore Direct Backup Engine XP: User’s Guide
About this guide This guide describes and provides instructions for preparing for Direct Backup Engine operations on the HP Surestore Disk Array XP. The instructions given in this guide are intended for system administrators who already have the following skills and knowledge: • a background in data processing and understanding of direct-access storage device subsystems and their basic functions.
Revision history March 2002 6 First release.
Technical support For the most current information about related products, visit the support web site: Direct Backup Engine High-end arrays www.hp.com/support/dbexp www.hp.com/support/stressfree For information about product availability, configuration, and connectivity, consult your HP account representative.
Warranty statement HP warrants that for a period of ninety calendar days from the date of purchase, as evidenced by a copy of the invoice, the media on which the Software is furnished (if any) will be free of defects in materials and workmanship under normal use. DISCLAIMER. EXCEPT FOR THE FOREGOING AND TO THE EXTENT ALLOWED BY LOCAL LAW, THIS SOFTWARE IS PROVIDED TO YOU “AS IS” WITHOUT WARRANTIES OF ANY KIND, WHETHER ORAL OR WRITTEN, EXPRESS OR IMPLIED.
liability for incidental or consequential damages, so the above limitation may not apply to you to the extent prohibited by such local laws. NOTE.
1 Backup solutions The Direct Backup Engine feature of the HP Surestore Disk Array XP with use of a backup application provides “server-free” backup solutions between the disk array and backup devices such as tape devices and disk devices. Direct Backup Engine enables nondisruptive backup directly from disk to tape (or disk) in a storage area network (SAN) environment, eliminating server CPU and I/O overhead during actual movement of data and shortening the time required for backups.
Overview of Direct Backup Engine Host Server XP Disk Array Extended Copy Command (Backup) VOL Backup Application "Server-Free" Direct Backup Direct Backup Engine Backup Device Data Data Tape Device or Disk Figure 1. Direct Backup Engine Direct Backup Engine supports the Extended Copy commands issued from the host server (with a backup application installed) to the XP Disk Array.
Direct Backup Engine Components Direct Backup Engine operations involve the following components: • Open-system host server • HP Surestore Disk Array XP and volumes (LUs) • Backup devices (tape devices and/or Disks) • Port groups (target ports and initiator ports) • Fibre-channel cable connections • XP Remote Console PC • LUN Manager remote console software • Direct Backup Engine remote console option (license key) • Fibre-channel package for initiator ports Figure 2 shows the Direct Backup Engine component
Open-System Host Server The Direct Backup Engine operations involve the open-system host server with a backup application installed. The host server executes the Extended Copy commands to copy the specified data in the XP Disk Array to the specified backup devices (such as tape devices and Disks). The host server can remain online during the actual movement of data from disk to tape or disk; therefore the server CPU and I/O resources are always available to other operations and applications.
XP Disk Array and Volumes (LUs) The Direct Backup Engine operations involve the XP Disk Array. Direct Backup Engine supports all physical disk drive options and RAID-level configurations for the XP Disk Array. The XP Disk Array contains the original volumes (LUs) for backup, and remains online to the host server all the time.
Open-system host server (Backup application) Extended Copy command CHF Target LUN:0 LUN:1 LUN:10 LUN:10 LUN:255 Subsystem LUN:1 Starting LBA Ending LBA (determined by the transfer size) The Extended Copy command specifies the data by the following values: - LUN (0 - 255), - Starting LBA, and - Transfer size in byte. Data can be specified across multiple LUs. (Max. = 63) Figure 3.
Backup Devices Direct Backup Engine supports tape devices and disk devices as backup devices for the XP Disk Array. For the backup device requirements, see the section on system requirements.
Port Groups (Initiator Ports and Target Ports) You must set a minimum of one port group in the XP Disk Array before you can perform the Direct Backup Engine operations. Setting a port group reduces the time for specifying the copy destination, thus improving performance of direct copy from the disk to the backup device. In each port group target port(s) and initiator port(s) are registered.
Fibre-Channel Cable Connections The Direct Backup Engine connections are the physical paths used by the XP Disk Array to communicate with the backup devices. The XP Disk Array and backup devices are connected via fibre-channel interface cables. When fibre-channel interface (multimode shortwave) connections are used, two switches are required for distances greater than 0.5 km (1,640 feet), and distances up to 1.5 km (4,920 feet, 0.93 miles) are supported.
XP Remote Console PC and Software Options Before you can issue the Extended Copy commands from the host server using the back up application, you must install the Direct Backup Engine and LUN Manager remote console software options (license keys) from the Remote Console PC, and set the Direct Backup Engine ports. Please refer to the remote console documentation for instructions on installing an option.
Configurations Figure 4 to Figure 6 shows three different examples of configurations that can be used for Direct Backup Engine operations. For fibre-channel interface connections, you can use the switches as for ordinary switch connections, and no special settings are required for the XP Disk Arrays.
Open-System Server with Backup Application Backup Switch or HUB Tape Device Extended Copy Command SAN Environment Same initiator ports FC CA XP Disk Array XP Disk Array Port group CHF CHF Target Initiator CHF CHF RCU Target Target MCU Initiator VOL VOL Figure 5.
2 Preparing for Direct Backup Engine Operations The Direct Backup Engine operations involve the volumes on the XP Disk Array, the open-system host server(s) with the backup application installed, the backup device(s) connected to the XP Disk Array, the licensed Direct Backup Engine remote console option, and the LUN Manager remote console option.
System Requirements The Direct Backup Engine system requirements are: • HP Surestore Disk Array XP: Only XP512 and XP48 disk arrays, microcode, and software required for Direct Backup Engine operations must be installed and enabled. • Open-system host server: The following operating systems are supported: • Solaris 2.6 or later • HP-UX 11.0 Please contact your HP account team for the latest information on XP platform support for Direct Backup Engine.
Port Requirements Port Groups You must set at least one port group (0 to F up to 16 port groups) in the XP Disk Array for the Direct Backup Engine operations. Each port should have one or more target port and one or more initiator port. For example, if you set 16 port groups, each port group will contain a target port and an initiator port.
Port Types of Direct Backup Engine and Fibre Channel Continuous Access XP For the FC CA operations, three port types are required: ordinary target port, MCU initiator port, and RCU target port. The initiator port and target port of Direct Backup Engine are equivalent to the MCU initiator port and ordinary target port of FC CA in the primary MCU respectively.
Target Ports ↔ Initiator Ports Ordinary Target Ports Initiator Ports RCU Target Ports Figure 8. Changing Port Types for Direct Backup Engine Operations Port Topology Table 2 shows supported port topology types: Table 2. Supported Port Topology Types No. Topology Initiator Port Target Port Port Type Remarks 1 Point to Point No No N-Port XP Disk Arrays do not support Point-to-Point.
Fibre-Channel Packages (CHF PK) The XP Disk Array supports four (including the new and old) fibrechannel adapter package models. For initiator ports used to connect the XP Disk Array and the backup devices, the new fibre-channel package models supported by FC CA is required. Also, there are two types of fibre PCB mode: Standard and High Speed (see Table 3). For information on the fibre PCB modes, refer to HP Surestore LUN Configuration Manager XP: User's Guide.
Fibre-Channel Connection The HP Customer Engineer along with the customer should perform the initial installation and setup of the Direct Backup Engine. Fibre-channel interface connection provides two different configurations: • Direct connection: Two devices are connected directly together. • Switch connection: Up to three optical fibre cables are connected together via the switches to connect the devices. Up to two switches can be used.
Preparing for Remote Console PC The user and the HP service representative perform initial installation of the Remote Console PC hardware. The user installs the options required for Direct Backup Engine operations on the Remote Console PC. To install the options required for Direct Backup Engine operations: 1. Install the Remote Console Main (RMCMAIN) software on the Remote Console PC, which is connected to the Direct Backup Engine. 2. Add each Direct Backup Engine to the Remote Console PC. 3.
Preparing the Host Server for Direct Backup Engine Operations Please refer to the HP Surestore Disk Array XP Operating System Configuration Guide: Sun Solaris or HP Surestore Disk Array XP Operating System Configuration Guide: HP-UX.
3 Using LUN Manager for Direct Backup Engine Operations You must use LUN Manager to set the port types (target and initiator) and port group(s) before performing Direct Backup Engine operations on the HP Surestore Disk Array XP. This section describes the following LUN Manager procedures required for Direct Backup Engine operations: • Setting the target ports and initiator ports, • Adding ports to a port group, and • Deleting ports from a port group.
The LUN Manager Panel (Port Group Tab) To open the Port Group tab of the LUN Manager panel, connect to the desired XP Disk Array, select LUN Manager on the Option Select panel, and then select the Port Group tab. Figure 10. LUN Manager Panel (Port Group Tab) The Port Group tab of the LUN Manager panel has the following features: • The Port Group tree view displays a list of all port groups (00 - 0F). If some ports belong to a port group, a blue port icon ( ) is displayed.
When you select the Delete button, the Delete Port panel is displayed, asking you to confirm that you want to delete the selected port(s) from the port group. • The I/T (Initiator/Target) button opens the Port Change panel, which allows you to change the port type (Initiator or Target) of the selected port. Note: You cannot change an initiator port to an RCU target port. • The OK button applies the settings in the LUN Manager panel to the XP Disk Array and closes the panel.
• The Close button closes the Port Change panel. To change one or more ordinary target ports or RCU target ports to initiator ports: 1. On the Port Group tab of the LUN Manager panel, select the I/T button to open the Port Change panel. 2. Select one or more target ports or RCU target ports and then select the →Initiator button. The type of the selected ports changes from Target or RCU Target to Initiator. 3. Select the Close button to close the Port Change panel.
group number selected on the Port Group tab), Port, Type (initiator, target, or RCU target port), and PCB Mode (standard or high speed). • The OK button adds the selected port(s) to the selected port group. • The Cancel button closes the Add Port panel. To add one or more ports to a port group: 1. On the Port Group tab of the LUN Manager panel, select a port group in the Port Group tree view. 2. Select the Add... button to open the Add Port panel.
If you want the subsystem to check I/Os for the selected port(s), clear the Not execute I/O check checkbox, and then select the Yes button. If you want to delete the selected port(s) forcibly without I/O check, select the Not execute I/O check checkbox, and then select the Yes button. The selected ports are deleted from the selected port group.
4 Troubleshooting The user is responsible for the operation and normal maintenance of the Remote Console PC. Here are some guidelines for troubleshooting the Remote Console PC: • Check the cabling and the LAN. Verify that both the computer and LAN cabling are firmly attached, and that the LAN is operating properly. Reboot the PC. Close any programs that are not responding. If necessary, reboot the PC and restart the Remote Console program. (If possible, first close all open programs before rebooting.
Table 5. General Error Conditions Error Condition Recommended Action RMCMAIN will not add Verify that the SN (serial number) is correct. If not, delete the subsystem, and then add the subsystem or connect with a using the correct SN. If RMCMAIN still cannot connect, check the settings on the Windows network subsystem. control panel, and use PING to test the LAN connection. If RMCMAIN still cannot connect, exit RMCMAIN, restart the PC, start RMCMAIN, and try again.
Calling the Support Center If you need to call the HP Support Center, make sure to provide as much information about the problem as possible, including the circumstances surrounding the error or failure and the exact content of any error messages and/or codes displayed on the Remote Console PC and/or logged at the host. The HP Support Center may ask you to send them the history log files (on the Remote Console PC) for analysis.
appendix Specifications For the latest specifications and requirements, please check with your HP representative. Item Requirement and/or Restriction Host server Platform and operating system Sun Solaris 2.6 or later HP-UX 11.0 Backup application VERITAS NetBackup 4.
Extended Copy command Segment descriptor type Block to Stream (00h): Disk to tape (backup only). Block to Block (02h): Disk to disk. Inline Data to Stream (04h): Inline data to tape. Verify Target (07h) Target descriptor type WWN target descriptor (E0h) Tape block size 512-boundary Maximum number of target descriptors per command 64 (64 LUs are available, but one LU is used for specifying the target.
glossary Glossary Adr ATM address asynchronous transfer mode BC Business Copy XP CA CCW CHF CNT CU Continuous Access XP channel command word channel fibre Computer Network Technology Corporation control unit DASD DB2 DFSMS DWL direct access storage device Database 2 Data Facility Storage Management Subsystem duplex write line ESCON ESCD ExSA Enterprise System Connection (IBM trademark for optical channels) ESCON director extended serial adapters FC CA Fibre Channel Continuous Access XP I/O IBM
NVS nonvolatile storage PC PCB P/K PSUE PSUS P-VOL personal computer system printed circuit board package pair suspended-error pair suspended-split primary volume RAID RAID-1/-5 RC RCP RCU RIO redundant array of independent disks specific RAID architectures reference code remote control port remote control unit remote IO SIM SMPL S/N SNMP SSB SSID S-VOL SVP sync s# service information message simplex serial number (also abbreviated as s#) simple network management protocol sense byte storage subs
index B L backup devices, 17 LUN Manager panel illustration, 34 C calling the Support Center, 41 CHF PK, 28 O open-system host server, 14 E P Extended Copy command, 12 specifying data, 16 port group, 18 port group setting illustration, 25 port groups, 25 port requirements, 25 F fibre-channel cable connections, 19 H R hardware installation, 29 host server, 14 Remote Console PC, 20, 30 requirements port, 25 I S initiator port, 35 initiator ports, 18 installation hardware, 29 requirements, 24
