Hp StorageWorks XP Remote Web Console Software Uživatelský manuál Strana 1

HP StorageWorksCache LUN XP user guidefor the XP10000/XP12000Part number: T1716-96002Second edition: December 2005

10 Cache LUN XP for the XP10000/XP12000Unit of cache area allocationA Cache LUN XP extent is a range of logical blocks within an LDEV. A logical block

Cache LUN XP user guide for the XP10000/XP12000 11Cache LUN XP modesCache LUN XP has two modes:• priority mode• bind modePriority modePriority mode re

12 Cache LUN XP for the XP10000/XP12000General cache capacityIn addition to the Cache LUN XP cache, you should set the general cache capacity accordin

Cache LUN XP user guide for the XP10000/XP12000 13Required cache size for Cache LUN XPThe required cache size for Cache LUN XP depends on the operatio

14 Cache LUN XP for the XP10000/XP12000For specified volumes:a. OPEN-VStarting value = (↓Setting value of starting address (LBA) ÷ 512↓)Round down the

Cache LUN XP user guide for the XP10000/XP12000 15NOTE: If a RAID-5 or RAID-6 volume area is changed from priority mode to bind mode and no cache is a

16 Cache LUN XP for the XP10000/XP12000b. Priority modeRequired cache size = (Number of addresses × (128 × (512 + 16) ) ) ÷ 1,024Units are KBNOTE: If

Cache LUN XP user guide for the XP10000/XP12000 17• If you clear this check box and then click Apply, a non-pre-staging operation will be performed, b

18 Cache LUN XP for the XP10000/XP12000• Start: The starting address for data that will reside in the cache. This is expressed as a logical block addr

Cache LUN XP user guide for the XP10000/XP12000 19b. Clear the Multi Set / Release check box.c. Click Set. A confirmation dialog box appears.d. Click

Legal and notice information© Copyright 2005 Hewlett-Packard Development Company, L.P.Confidential computer software. Valid license from HP required f

20 Cache LUN XP for the XP10000/XP12000For open systems, Cache LUN XP identifies a logical area in units of 128 blocks for OPEN-V, and 96 blocks for o

Cache LUN XP user guide for the XP10000/XP12000 21c. Click OK to continue. The Multi Release window appears.Figure 5 Multi Release windowd. In the CU

22 Cache LUN XP for the XP10000/XP12000Partial Cache Residence (PCR) operationsOverview of the PCR functionThe XP10000/XP12000 has a special network b

Cache LUN XP user guide for the XP10000/XP12000 232. Click the PCR tab. The PCR pane appears.Figure 7 PCR panePCR paneThe PCR pane displays the table

24 Cache LUN XP for the XP10000/XP12000• Buttons: • Set: Adds the requested PCR operation (set PCR cache) to the PCR information table.• Clear: Enters

Cache LUN XP user guide for the XP10000/XP12000 25IndexAaudience, documentation 5available space 17Bbattery backup 12bind mode 12buttons 18Ccache exte

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Figures1 Cache LUN XP operations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Ex

Tables1 Recommended and minimum firmware versions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Document conve

Cache LUN XP user guide for the XP10000/XP12000 3About this guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

43 Cache LUN pane. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164 Multi

Cache LUN XP user guide for the XP10000/XP12000 5About this guideThis guide provides information about the following:• ”Supported volumes” on page 9•

6Document conventions and symbolsCAUTION: Indicates that failure to follow directions could result in damage to equipment or data.IMPORTANT: Provides

Cache LUN XP user guide for the XP10000/XP12000 7Subscription serviceHP strongly recommends that customers register online using the Subscriber's

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Cache LUN XP user guide for the XP10000/XP12000 91 Cache LUN XP for the XP10000/XP12000Use HP StorageWorks Cache LUN XP to reserve areas of cache memo