Adding Consistency Groups (Add Ct Group); Add Ct Group Pane - HP StorageWorks XP12000 User Manual

Adding consistency groups (Add CT Group)

Use the Add CT Group command to add a consistency group to the connected MCU. When the Add CT
Group command is selected, the Add CT Group pane appears. Use the Add CT Group pane to select
group options for the group.
Figure 41 Add CT Group pane
• MCU-RCU Path: Path type for remote copy connections.
• Time Out (Copy Pending) (min.): Maximum delay allowed for Continuous Access XP Async copy
(none or from 1 to 15 minutes; none = no timeout for Continuous Access XP Async copy pending).
The default is five minutes. If the delay between the Continuous Access XP Async P-VOL update
and corresponding S-VOL update reaches the specified time, the RCU suspends all S-VOLs in the
group. A timeout occurs when the RCU cannot settle a recordset within the specified time or has
not had any communications from one of the MCUs in the group within the specified time.
NOTE:
The copy pending timeout value should be less than the I/O timeout value of the host system.
• Time Out (RCU ready) (min.): Maximum delay allowed for re-establishing MCU-RCU
communications following MCU power-off (none or from 1 to 10 minutes; none = 0 minutes).
The default is five minutes. If the MCU cannot re-establish communications with the RCU within
the specified time, the MCU suspends all P-VOLs in the group.
• Cancel button: Cancels settings.
• Set button: Sets consistency group options.
1.
Connect to the MCU.
2. Ensure that async options are configured as needed (see
3.
From the Consistency Group tree, click a consistency group mode that includes the consistency
group to be added.
4.
From the Consistency Group list, click the consistency groups to add. Select more than one group
that is not registered yet.
5. Right-click, click CT Group Operation, and click Add CT Group. The Add CT Group pane appears.
6.
From the Add CT Group pane, click the port type (fibre) and group options: copy pending timeout
and RCU ready timeout. Remember that you cannot modify the port type of the group after assigning
a pair to the group.
7. Click Set in the Add CT Group pane. The Add CT Group pane closes, and the list changes to
the Consistency Group Settings Parameter list.
88
Continuous Access XP for the Array
Asynchronous copy option).