Hitachi TrueCopy for IBM z/OS User and Reference Guide (T5211-96001, June 2007)

Performing TrueCopy for z/OS Configuration Operations 5-33
Hitachi Universal Storage Platform V TrueCopy for IBM z/OS User’s Guide
Adding Consistency Groups
The Add CT Group dialog box (see Figure 5-8) allows you to add consistency
groups and select the options for the new groups. To open the Add CT Group
dialog box, click the Asynchronous Operation tab, select Display All or Not
Used in the tree, select the group(s) to be added, right-click the group(s),
click CT Group Operation, and click Add CT Group.
Figure 5-8 Add CT Group Dialog Box
Timer Type: allows you to select the timer type option for the group:
• System = system timer (CPU TOD clock) provided by the I/O time-stamping
function
• Local = local timer (internal MCU TOD clock)
• None = system timer (CPU TOD clock) provided by the I/O time-stamping
function. This timer type should only be selected when establishing TCzA
pairs in the reverse direction (to copy from the secondary site back to the
primary site). When None is selected, the MCU still acquires the time-stamp
information from the host I/O time-stamping function.
MCU-RCU Path: indicates the path type (fibre) for the remote copy
connections. Currently, you can not change the path type.
Offloading Timer (min.): allows you to specify the amount of time for
monitoring to transfer data to a sidefile between 0 and 20 minutes in one
second increment. The default setting is 5 minutes.