HP StorageWorks XP24000 LUN Expansion User's Guide Part number: T5214–96005 First edition: June 2007
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Contents About this Guide . . . . . . . . . . . . . . . . . . . . . . . . . . Intended Audience . . . . . . . . . . Related Documentation . . . . . . . . Document Conventions . . . . . . . . Conventions for Storage Capacity Values Window Illustrations . . . . . . . . . HP Technical Support . . . . . . . . . Subscription Service . . . . . . . . . HP Websites . . . . . . . . . . . . Documentation Feedback . . . . . . . 1 About LUSE Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figures 4 1 ..LUSE Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2 ..LUSE Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 ..Concatenation List Dialog Box . . . . . . . . . . . . . . . . . . . . . . . . . . 17 22 4 ..Set LUSE Confirmation Dialog Box . . . . . . . . . . . . . . . . . . . . . . . . 23 5 ..Reset LUSE Confirmation Dialog Box . . . . . . . . . . . . . . . . . . . . . . . 26 6 ..Release LUSE Confirmation Dialog Box . . . . . . . .
Tables 1 ..Document Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2 ..Specifications and Restrictions on LDEVs Used to Configure a LUSE Volume . . . . . . . 12 3 ..Specifications and Restrictions on LDEVs Released from a LUSE Volume . . . . . . . . 13 4 ..LDEV Status Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 ..Glossary, Acronyms, and Abbreviations . . . . . . . . . . . . . . . . . . . . . .
About this Guide This user's guide provides instructions for using the LUN Expansion option on the HP storage system. The term storage system in this guide refers to an HP StorageWorks XP24000 Disk Array. Intended Audience This document assumes the following: • The user is familiar with the operating system and web browser software on the system hosting the Remote Web Console software. • The user has a background in data processing and understands RAID storage systems and their basic functions.
• HP StorageWorks XP24000 Volume Retention Manager User’s Guide • HP StorageWorks XP24000 Volume Security User’s Guide You can find related HP StorageWorks documents from the Manuals page of the HP Business Support Center website: http://www.hp.com/support/manuals. In the Storage section, click Storage Software and then select the product. Document Conventions Table 1 Document Conventions Convention Element Blue text: Table 1 Cross-reference links and e-mail addresses Blue, underlined text: http://www.
• • • • • Technical support registration number (if applicable) Product serial numbers Error messages Operating system type and revision level Detailed questions Subscription Service HP recommends that you register your product at the Subscriber’s Choice for Business website: http://www.hp.com/go/e-updates After registering, you will receive e-mail notification of product enhancements, new driver versions, firmware updates, and other product resources.
About this Guide
1 About LUSE Operations Overview of HP StorageWorks XP LUN Expansion (LUSE) LUN Expansion (LUSE) operations allow hosts that can use only a limited amount of LUs per fibre interface to have access to larger amounts of data by using expanded LUs. LUSE Function LUN Expansion (LUSE) is a function for open systems. To use this function, you need the software called Open Volume Management.
Whether hosts can access a volume larger than 2 TB depends on the operating systems of the hosts. Hosts running the following operating systems can access LUSE volumes larger than 2 TB: • • • • AIX 5.2 TL08 or later AIX 5.3 TL04 or later Windows Server 2003 SP1 or later Red Hat Enterprise Linux AS 4 Update 1 or later Cautions: • Other operating systems do not support LUs larger than 2 TB. If other operating systems are used by hosts, make sure that the LUs are not larger than 2 TB.
Note 1: The number of expanded LUs (LDEVs) should not exceed 36, even if the LUSE volume contains another LUSE volume. Note 2: Combining RAID 1 and RAID 5 volumes into the same LUSE volume is supported, but not recommended. Note 3: If you combine LDEV00, LDEV03, and LDEV05 into LUSE 1, LDEV02 and LDEV04 into LUSE 2, and LDEV06 and LDEV07 into LUSE3, you can also combine LUSE 1 and LUSE 3. However, you cannot combine LUSE 1 and LUSE 2 because the LDEV range in LUSE 1 and LUSE 2 overlaps.
About LUSE Operations
2 Preparing for LUSE Operations This chapter describes the environment you need to prepare in order to operate LUSE. System Requirements To operate LUN Expansion (LUSE), you need the following items: • HP storage system (or simply storage system where applicable hereafter) • HP StorageWorks XP Remote Web Console computer • Licensed LUN Expansion software Note: To use the LUSE function, you need the software called Open Volume Management. Note that this software is only for open systems.
Preparing for LUSE Operations
3 Using the LUSE GUI This chapter describes the GUI for LUN Expansion (LUSE) operations. LUN Expansion Window The following is the LUN Expansion (LUSE) window. Later sections in this chapter explain components of the LUSE window. For instructions on how to display this window, see “Launching LUN Expansion (LUSE)” on page 21. Figure 2 LUSE Window LDEV Information Tree • The LDEV Information tree is on the upper-left corner of the LUN Expansion tab.
Note: An LDEV number that ends with a # indicates that the LDEV is an external volume • • • • • • • • • • (for example, 00:00:01#). For details regarding external volumes, see HP StorageWorks XP24000 External Storage Software User’s Guide. Note: An LDEV number that ends with a letter V indicates that the LDEV is a virtual volume (V-VOL) for HP StorageWorks XP Snapshot (for example, 00:00:01V). For details regarding V-VOLs, see HP StorageWorks XP24000 Snapshot User’s Guide.
• Volume Count drop-down box - Number of LDEVs that form a LUSE volume. For example, if you select 3 in the Volume Count combo box, three LDEVs are expected to form a LUSE volume, and then three LDEVs are added to the Expanded LDEVs list. Note: You can select an LDEV only from the Volume Count drop-down box. You cannot select a LUSE volume. • Expanded LDEVs list - LDEVs that are selected as LUSE volume components. An LDEV is added to this list when the <
Using the LUSE GUI
4 Performing LUSE Operations Launching LUN Expansion (LUSE) To launch LUN Expansion: 1. In the Remote Web Console main window, click Go, Volume Manager, and then LUN Expansion on the menu bar. The LUSE window appears. This window enables you to perform LUSE operations. Note: To exit LUSE, click the Logout button in the upper-right corner of the Remote Web Console main window, or end the Web browser.
Figure 3 Concatenation List Dialog Box Note: A parity group number that starts with a letter E indicates that the parity group consists of one or more external LUs (for example, E1-1). Creating a LUSE Volume WARNING: LUSE creation is a destructive operation. Move and/or back up your data before proceeding.
If you do not want to perform a LUSE operation on a volume that has a path definition, click Cancel. You are returned to the previous dialog box, and then you can retry the operation. b. To perform a LUSE operation that will affect more than one SLPR or CLPR, click OK. A confirmation dialog box appears. Then, go to step 5. If you do not want to perform a LUSE operation that will affect more than one SLPR or CLPR, click Cancel. You are returned to the previous dialog box, and then you can retry the operation.
• Capacity: This field shows the capacity for the LDEV. • OK - Creates the LUSE volume. Click this button to set the LUSE volume configuration for the LDEVs in the LUSE component list. The LDEVs registered as components of the LUSE volume are displayed in blue bold italics in the LDEV information list. • Cancel button This button is used to cancel the operation to create a LUSE volume using the LDEVs in the list.
2. 3. 4. 5. 6. 7. 8. For detailed information about Modify mode, see the HP StorageWorks XP24000 Remote Web Console User's Guide. Select the CU number to create the LUSE volume from the LDEV information tree. Click the arrow button in Select an LDEV. Select the top LDEV of the LUSE volume from the drop-down list. The selected top volume appears in the Expanded LDEVs list. Normal LDEVs and LUSE volumes that can be used for a LUSE volume are displayed in the Free LDEVs list.
For detailed information about Modify mode, see the HP StorageWorks XP24000 Remote Web Console User's Guide. 2. Select a CU number from the LDEV Information tree (in the upper-left corner of the LUN Expansion tab). The LDEV Detail table (in the upper-right corner of the LUN Expansion tab) displays all LDEVs in the selected CU. 3. Select an unregistered LUSE volume (in blue bold italics) in the LDEV Detail table (in the upper-aright corner of the LUN Expansion tab).
Releasing a LUSE Volume WARNING: Releasing LUSE volumes is a destructive operation. Move and/or back up your data before proceeding. Delete all SCSI paths to the LUSE volume that you want released. To release a LUSE volume: 1. 2. 3. 4. 5. 6. 7. 8. Make sure that Remote Web Console is in Modify mode. For detailed information about Modify mode, see the HP StorageWorks XP24000 Remote Web Console User's Guide.
Note: An LDEV number that ends with a letter X indicates that the LDEV is a virtual volume (V-VOL) for XP Thin Provisioning (for example, 00:00:01 X). For details regarding V-VOLs, see HP StorageWorks XP24000 Thin Provisioning Software User’s Guide. • Emulation: This field shows the emulation type of the LDEV. • Capacity: This field shows the capacity of the LDEV. • OK button This button is used to release the LUSE volume configuration in the release list.
Figure 7 LUSE Detail Dialog Box • LDKC:CU:LDEV: This field shows an LDEV status icon. This field also shows the LDKC, CU, and LDEV numbers of an LDEV. Note: An LDEV number that ends with a # indicates that the LDEV is an external volume (for example, 00:00:01 #). For details regarding external volumes, see HP StorageWorks XP24000 External Storage Software User’s Guide. Note: An LDEV number that ends with a letter V indicates that the LDEV is a virtual volume (V-VOL) for XP Snapshot (for example, 00:00:01V).
Performing LUSE Operations
5 Troubleshooting Troubleshooting LUN Expansion • For troubleshooting information for the storage system, see the HP StorageWorks XP24000 Disk Array Owner's Guide. • For troubleshooting information for the Remote Web Console software, see the HP StorageWorks XP24000 Remote Web Console User’s Guide. • For information about the Remote Web Console error codes, see the HP StorageWorks XP24000 Remote Web Console Error Codes.
Troubleshooting
A Glossary, Acronyms, and Abbreviations Table 5 Glossary, Acronyms, and Abbreviations Cache extents Areas used for Cache Residency Manager CU control unit Custom access A feature that allows a non-administrator to be assigned update access to one or more of the restricted Remote Console functions DASD direct access storage device DKCMAIN disk controller main ESCON Enterprise System Connection FD floppy disk FD Copy floppy disk copy Cache Residency Manager dynamic cache residency GB gigabyte
SSID storage subsystem ID SVP service processor TCP/IP transmission control protocol/internet protocol TID target ID Trap An SNMP agent initiates trap operations when R-SIMs occur in order to send the R-SIMs to the SNMP manager. An SNMP agent can be configured to deliver traps to more than one SNMP manager.
Index A audience, 7 B Before launching LUN Expansion, 15 C conventions document, 8 storage capacity values, 8 Create LUSE volume, 19 Create a LUSE Volume methods, 22 D document conventions, 8 related documentation, 7 documentation HP website, 7 providing feedback, 9 E Enable LUN Expansion, 15 Expanded LDEVs create, 25 G GUI, 17 H help obtaining, 8 HP technical support, 8 L LDEV, 11 LDEV Detail Table create, 22 overview, 17 LDEV status icons, 18 logical volume, 11 LUN Expansion, 11 LUN Expans
W websites HP, 9 HP Subscriber's Choice for Business, 9 product manuals, 7 36
