HP XP20000 User Manual download pdf (Page 85)

• Icons

The following icons are displayed in the dialog box.

◦ V-VOL group

◦ V-VOL group (in the process of being deleted)

• The Page area displays the number of the current page and the following items are used to

change pages of the list.

◦ Previous button allows you to display the previous 4,096 V-VOL groups.

◦ N/M drop-down list: The N displays the number of the current page. The M displays total

number of pages. You can click the drop-down list, and choose the number of the page

you want to display.

◦ Next button allows you to display the next 4,096 V-VOL groups.

• Set button specifies that the V-VOL groups selected in the V-VOL information setting list will be

deleted. The V-VOL groups to be deleted are displayed as blue-italic fonts.

• Clear button clears each setting in the V-VOL information setting list.

• OK button closes the Delete V-VOL Groups dialog box. A confirmation message indicating if

it is OK to apply the setting to the storage system is displayed.

• Cancel button cancels all the settings in the Delete V-VOL Groups dialog box.

Creating XP Snapshot Pairs

Use the paircreate command of the RAID Manager to create XP Snapshot pairs. To create XP

Snapshot pairs, the following are required.

• Specify a volume that meets the requirements in “P-VOL Requirements” (page 33) as a P-VOL

• Specify a volume that meets the requirements in “S-VOL Requirements” (page 34) as an S-VOL

• Specify the same size volumes as a P-VOL and S-VOL

• When you use a volume that is already used as the P-VOL of another pair for the P-VOL of

the new pair, specify the same pool for the pairs which share the P-VOL

For details about the paircreate command, see the HP StorageWorks XP RAID Manager User

Guide.

Storing XP Snapshot Data

Use the pairsplit command of the RAID Manager to store snapshot data in the pool. You can

store 64 snapshot data at most per P-VOL. To store snapshot data, the pair status must be PAIR.

When a P-VOL is paired with two or more volumes, make sure that none of the pairs is in

COPY(RS-R) status. If some pairs are in the COPY(RS-R) status, the pairsplit command may end

abnormally.

During execution of the pairsplit command to the XP Snapshot pair, do not execute the

pairresync -restore command to the other XP Snapshot pair that shares P-VOL with the

corresponding pair. The pairsplit command being executed may end abnormally. Possible

causes are as follows:

• Command rejection

• Timeout (Error code: EX_EWSTOT)

• Suspending the pair (Error code: EX_EWSUSE)

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HP XP20000 User Manual Page 85