HP StorageWorks XP Remote Web Console Software - Manual (Page 122)

5. On the Add CT Group dialog box, select the desired port type and group options (copy
pending timeout, RCU ready timeout). You will not be able to modify the port type of the
group, after you assign a pair to the group.
6. Click Set to close the Add CT Group dialog box (Click Cancel to cancel the add group
operations.) The preview list now displays the requested add group operation(s).
7. Verify the requested operation(s) displayed in the preview list.
To change one or more operations, select the operation(s) from the preview list, right-click,
and click Modify. To remove one or more operations, select the operation(s) from the preview
list, 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.
8. To start the operation(s), click Apply.
9. If you are using TrueCopy for Mainframe Async in the n-to-1 configuration, reset the Time Out
(Copy Pending) option as follows to avoid suspension of TrueCopy for Mainframe pairs due
to timeout errors:
a.
Suspend all pairs in the group, so that you can change the group options.
b. Select the group on the Asynchronous Operation window, right-click and click CT Group
Operation > CT Group Option, change the Time Out (Copy Pending) option to None, and
click Set.
c. Resynchronize all pairs in the group, and then perform normal I/O operations to the
M-VOLs in this group.
d. Acquire the current TrueCopy for Mainframe async copy delay time by calculating the
difference between the host I/O time-stamp information and the consistency time shown
on the CT Group Status dialog box.
e. Suspend all pairs in the group again, and set the Time Out (Copy Pending) group option
to a value greater than the current copy delay time. If the value exceeds the maximum
time (15 min.), reduce the host I/O rate, or set the option to None.
f. Resynchronize all pairs in the group.
Changing the Consistency Group Options
The CT Group Option dialog box (see “CT Group Option Dialog Box” (page 123) ) allows you to
change the group options for the existing consistency groups. To display the CT Croup Option
dialog box, select the LDKC where the desired consistency group belongs, or select Used from the
tree in the Asynchronous Operation tab, select the consistency group from the list, right-click, and
then click CT Group Option command in the sub menu command of the CT Group Operation
command.
To change the group options, you must suspend all pairs in the group first.
122 Performing TrueCopy for Mainframe Configuration Operations