HP StorageWorks XP Remote Web Console Software - Manual (Page 129)

suspended, subsequent write operations to the P-VOL will be accepted, and the MCU will
keep track of all P-VOL updates while the pair is suspended.
CT Group (Asynchronous only): Specifies the consistency group number for new pairs. All XP
Continuous Access Asynchronous pairs must be assigned to a consistency group. To change the
consistency group to which a pair is assigned, you must release and then restart the pair with the
desired group selected.
Error level (Asynchronous only) (default = Group):
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Group: When the specified pair is suspended, all pairs in the same group will be suspended,
even if the failure affects only that pair and not the entire group.
IMPORTANT: Select the Group error level for all pairs that are essential to disaster recovery.
Suspended XP Continuous Access Asynchronous S-VOLs with the LU error level should not be
used for disaster recovery.
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LU: If the failure affects only the specified pair, then only that pair will be suspended. A failure
that affects an entire group will always result in the suspension of all pairs in the group, as
well as all other affected XP Continuous Access pairs.
Changing Pair Options
The Change Pair Option dialog box (see “Change Pair Option Dialog Box (Synchronous and
Asynchronous)” (page 129) ) allows you to change the pair options (fence level, error level) for
existing XP Continuous Access pairs. To open the Change Pair Option dialog box, click the Pair
Operation tab, select a CU grouping, CU, port, or host group from the tree, select P-VOL from the
list, right-click, and click the Change Pair Option command.
Figure 50 Change Pair Option Dialog Box (Synchronous and Asynchronous)
•
Volume: Port - GID (host group number) - LUN of the selected volume.
If the pound or gate symbol (#) is added to the end of the device ID (00:00:3C #, for example),
the LDEV is an external volume. For details on external volumes, see the HP StorageWorks
XP24000/XP20000 External Storage Software User's Guide.
Changing Pair Options 129