Performing only pair splitting – HP StorageWorks XP Remote Web Console Software User Manual

Page 75

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• CCC: LU number
• XX:YY:ZZ: LDKC number:CU number:LDEV number

Note:

An LDEV number that ends with a # mark indicates that the LDEV is an external volume

(for example, 00:00:01#). An LDEV number that ends with a letter X indicates that the LDEV is

a virtual volume used by XP Thin Provisioning (for example, 00:00:01X). For details regarding

the external volumes, see the HP StorageWorks XP24000 External Storage Software User’s

Guide. For information about XP Thin Provisioning, see the HP StorageWorks XP24000 Thin

Provisioning Software User's Guide.

• Pair: The number of pairs.
• Emulation: The emulation type of the S-VOL.
• Capacity(MB): The capacity of the S-VOL displayed in megabytes (MB).
• CLPR: The cache logical partition (CLPR) of the S-VOL.

The Set button adds the selected S-VOL and P-VOL to the Pairsplit Volume List as an L1 pair.

The Change button replaces the existing S-VOL of the selected L1 pair (meaning the S-VOL of the

pair displayed in the Pairsplit Volume List) with the selected S-VOL.

The Cascade button adds the selected S-VOL and the P-VOL (node volume) to the Pairsplit Volume

List as a L2 pair. To use the Cascade button, you must select one of the listed L1 pairs.

The OK button adds the operation (setting) to split a pair composed of the P-VOL and S-VOL you

selected in the Pairsplit dialog box to the Preview List on the Pair Operation window.

Note:

To apply the new setting displayed in the Preview List to the storage system, you must

click Apply on the Pair Operation window.

The Cancel button cancels the operations set in the Pairsplit dialog box and closes the dialog box.

Performing Only Pair Splitting

To split one or more existing Business Copy pairs:

Caution:

The P-VOL and S-VOL are synchronized only when the pair status changes from COPY(SP) or

PSUS(SP) to PSUS. Due to the Business Copy asynchronous update copy operations, this status transition

can take several minutes.
If you want the S-VOLs you are intending to split to be identical to the P-VOLs, stop all write operations

to the P-VOLs before splitting the pairs. This ensures that there are no updates to the P-VOLs while the

pairsplit operations are synchronizing the S-VOLs to the P-VOLs.

1.

Go to the Pair Operation window, and select the desired port or host group in the Tree to

filter the volumes displayed in the Volume List.

2.

Select the pairs you want to split, right-click the selected pairs to display the pop-up menu, and

then select the Pairsplit command to open the Pairsplit dialog box.

Note:

You cannot split a suspended (PSUE) pair.

3.

On the Pairsplit dialog box, select the copy pace from the Copy Pace drop-down list for all

pairs being split.

Note:

The copy pace is set for all pairs being split. If you change the setting, the last setting

will become effective.

4.

Select the split type from the Select Split Type drop-down list for all pairs being split.

Note:

The split type is set for all pairs being split. If you change the setting, the latest setting is

applied to all pairs.

5.

When the Pairsplit dialog box displays the desired pairs, click OK to reflect all pairs to the

Preview List on the Pair Operation window.

Note:

Use the Delete command selected from the pop-up menu (that will be displayed by

right-clicking) to remove any pairs from the Pairsplit Volume List.

6.

On the Pair Operation window, click Apply to apply the pairsplit operations set in the Pairsplit

dialog box to the storage system.

When the pairsplit operations start, the Pair Operation window shows the new pairs with

COPY(SP) or PSUS(SP) status and the progress (%) of the update copy operations. The PSUS

status is displayed right away if there were no pending update copy operations.

XP24000 Business Copy Software User's Guide

75

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