HP StorageWorks XP Remote Web Console Software - Manual (Page 126)

information. Always use the group status and R-VOL status displayed at the RCU for disaster
recovery.
The SEQCHK status is also displayed as a pair status. To determine exactly which pair(s) in the
group has the SEQCHK status, check the R-VOL pair status at the RCU.
Previous displays status information for the consistency group number before the current consistency
group. Next displays status information for the CT group after the current group. Refresh refreshes
the status information. Close closes the CT Group Status dialog box.
Deleting Consistency Groups
A consistency group can be deleted only from the MCU and only if the MCU does not contain any
M-VOLs still assigned to the group. Deleting a consistency group from an MCU does not affect the
consistency groups registered at other MCUs. The RCU will automatically delete a consistency
group when the last pair in the group is released.
The CT Group Operation > Delete CT Group command allows you to delete a group from the current
MCU. The MCU will not allow you to delete a group which still has M-VOLs in the current MCU.
To delete one or more consistency groups from an MCU:
1. Make sure that all affected TrueCopy for Mainframe Async pairs have been released.
2. Select the LDKC where the desired consistency group belongs, or select Used from the tree in
the Asynchronous Operation tab to display the existing consistency groups in the list.
3. Select the consistency group(s) that you want to delete. You can only delete consistency groups
from the MCU (This CU Type = MCU).
4. Right-click the RCU, click CT Group Operation, and then click Delete CT Group. The preview
list displays the requested consistency group. If the Delete CT Group command is not enabled,
one of the groups still contains M-VOLs in this MCU. The preview list displays the requested
delete group operation(s).
5. Verify the requested operation(s) displayed in the preview list. To remove one or more delete
CT group operations, select the operation(s), right-click, and click Delete. To cancel all
operations, select all the operations in the preview list, right-click, and click the Delete command,
or click Cancel.
6. To delete the group(s), click Apply.
Usage Monitor Operations
The Usage Monitor window allows you to display and view the I/O statistics for all LDEVs to be
monitored on the connected storage system.
The I/O statistics are collected by Performance Monitor. From the Usage Monitor window, you
can display and view only the data for remote copy. Up to 1,440 monitoring data can be collected
for each LDEV at a sampling time interval specified by Performance Monitor, and up to 1,440
pieces of data can be collected for the entire LDEVs to be monitored.
The usage monitor operations are:
•
Starting and stopping monitoring
•
Displaying the usage monitor graph
•
Exporting the usage monitor data file
Starting and Stopping Monitoring
To make settings for starting and stopping the monitor, use Performance Monitor. For procedures
to start and stop the monitor, see the HP StorageWorks XP24000/XP20000 Performance Monitor
User's Guide.
126 Performing TrueCopy for Mainframe Configuration Operations