HP StorageWorks XP Remote Web Console Software - Manual (Page 123)

Figure 43 CT Group Option 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 TrueCopy for Mainframe Asynchronous 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.
NOTE: When using TCzA under a Fujitsu OS environment, select Local for the Timer Type.
MCU-RCU Path: Allows you to select the port type for the remote copy connections. You can only
change the port type when the group does not contain any pairs.
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.
Enable Inflow Control: Allows you to enable the inflow control. To enable the inflow control, click
check box. By default, the check box is selected. Before changing this option, you should release
or suspend pairs in the selected consistency group.
If you use Business Continuity Manager, see the HP StorageWorks Business Continuity Manager
Software User Guide and see explanations about Set Copy Group Attributes and FLOW CTL. If
you use PPRC, see information about NO DELAY options that are available in PPRC operations.
Time Out (Copy Pending) (min.): allows you to select the maximum delay allowed for TrueCopy for
Mainframe Async copy (none or from 3 to 15 mins., none = no timeout for copy pending). The
Asynchronous Operations 123