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Suspend pair operation, 5 overview of at-time split function – HP StorageWorks XP Remote Web Console Software User Manual

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When you specify Quick Split, the pair status changes to PSUS(SP), and the S-VOL is available

immediately for read and write I/Os (even though it is still reserved). The whole P-VOL data or

differential data at that time will be copied to the S-VOL in the background.

Pairsplit by Steady Split

When you specify Steady Split, the pair status changes to COPY(SP), and the whole P-VOL data

or differential data at that time will be copied to the S-VOL. When the Steady Split operation is

complete, you have full read/write access to the split S-VOL (even though it is still reserved). To

quickly finish the copy operation to access the S-VOL, make the P-VOL offline before the operation.

Pairsplit by At-Time Split

Pairsplit operation by At-Time Split can be performed by using RAID Manager.

When the Business Copy At-Time Split function is enabled, data in all P-VOLs in the same

consistency group is created in the corresponding S-VOLs at the time the storage system receives

the pairsplit request from the host server.

Figure 5

on page 19 shows an overview of the Business

Copy At-Time Split function.

Figure 5 Overview of At-Time Split Function

Consistency groups are defined by RAID Manager’s configuration definition file, which is created by

users. The Business Copy software on the Remote Web Console computer displays consistency group

information, but you cannot perform the At-Time Split operation by using Remote Web Console. Use

RAID Manager from the host in order to perform the At-Time Split operation. For further information on

RAID Manager, see the HP StorageWorks XP RAID Manager User’s Guide.

Suspend Pair Operation

When you suspend copy operations (using the RAID Manager pairsplit-E command), the P-VOL and

S-VOL status become PSUE and SSUE, respectively, and every track on the P-VOL is marked as differential

XP24000 Business Copy Software User's Guide

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