HP XP7 Business Copy for Mainframe Systems User Guide (TK913-96001)

Workflow for ensuring snapshot data is consistent with P-VOL data

Use the following workflow to ensure the snapshot data is consistent with the P-VOL data and is

ready to use in an BC Z pair user task:

1. Split the pair. To do this, complete one of the following:

• If you are using RWC, split the BC Z pairs in the CG.

The volume is split (“Split/SUSPOP” status).

For more information about how to perform a CG pair-split , see “Workflow for consistency

group pair-split” (page 52).

• If you are using RAID Manager to run commands, run the following command on the BC

Z pair:

pairsplit

BC Z pair resynchronization

You can resynchronize split (“Split/SUSPOP” status) or suspended (“Suspend/SUSPER” status)

pairs, which pairs the split volumes. Resynchronizing a split pair copies the P-VOL’s differential

data to the S-VOL and again pairs the S-VOL with the P-VOL. Resynchronizing a suspended pair

copies the entire P-VOL to the S-VOL.

Resynchronizing a suspended pair copies the P-VOL to the S-VOL and takes the same amount of

time as the initial copy operation.

CAUTION: Resynchronizing a pair does not ensure data consistency. Data in the two volumes

is the same only if:

• The P-VOL is offline.

• The pair is split (the S-VOL status is “Split/SUSPOP”).

For more information about pair status, see “The RWC pair status names and descriptions”

(page 66).

For more information about ensuring data consistency, see “Workflow for ensuring data

consistency” (page 49).

NOTE: If you perform a Quick Restore for a pair consisting of an encrypted volume and an

unencrypted volume, the encryption statuses of the volumes are reversed.