Forcibly deleting pairs – HP XP7 Storage User Manual

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3.

From the Actions menu, click Remote Replication > Edit Pair Options.

NOTE:

When you select multiple pairs on the Cnt Ac-J Pairs tab, Edit Pair Options values

may be blank because the selected pairs have different values.

When you specify a value, it is set for all selected pairs.

4.

In the Edit Pair Options window, for Error Level, specify the system response if a failure occurs
in the pair.

Mirror: Splits all pairs in the failed pair’s mirror. Mirror is the default.

Volume: Splits only the pair that failed.

5.

For CFW box, specify whether to copy cache-fast-write data to the S-VOL or not.

Primary Volume Only: Does not copy cache-fast-write data to the S-VOL (the default).

Note that when “Primary Volume Only” is specified, if the P-VOL fails and the host attempts
to read the same data from the S-VOL, the I/O may end abnormally.

Secondary Volume Copy: Copies cache-fast-write data to the S-VOL.

NOTE:

In a 3DC multi-target configuration, specify the same CFW setting for both Continuous

Access Journal Z and Continuous Access Synchronous Z pairs. If you specify Secondary
Volume Copy for either the Cnt Ac-J Z or Cnt Ac-S Z pair, the cache-fast-write data is copied
to the S-VOL of the other pair.

6.

Click Finish.

7.

In the Confirm window, review the settings and enter a task name in the Task Name box.

8.

Click Apply to save your settings to the system.

Forcibly deleting pairs

You forcibly delete a pair for the following reasons:

A currently unpaired volume that was previously in a pair is unusable because previous pair
information is still in the volume.

The pair cannot be connected to the secondary system because of a communication error. In
this case, delete the pair forcibly in the both the primary and the secondary storage systems.

Prerequisite information

The volume must be unpaired.

Procedure 25 To forcibly delete a pair

1.

In the Storage Systems tree, click Logical Device.

2.

Click the LDEV tab, then select the pair that you want to delete forcibly.

Pair maintenance

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