HP StorageWorks Continuous Access XP user guide for the XP10000/XP12000 (December 2005)

Continuous Access XP user guide for the XP10000/XP12000 77
• Port, G-ID, and LUN: Pairs in the connected CU that are in selected consistency group. The Group
column shows the host group name in parentheses. The LUN column shows the CU:LDEV in
parentheses. For LUs with more than one path, only the first path is listed.
NOTE: If # is added to the end of the LDEV number, such as 00:3C#, the LDEV is an external
volume. For details about external volumes, see the HP StorageWorks External Storage XP User
Guide.
• MCU-RCU Path: Channel type: fibre or serial.
• Time Out (Copy Pending): Maximum delay allowed for Continuous Access XP Async copy (see ”Adding
consistency groups (Add CT Group)” on page 77).
• Time Out (RCU Ready): Maximum delay allowed for re-establishing MCU-RCU communications
following MCU power-off (see ”Adding consistency groups (Add CT Group)” on page 77). If the CU
type is RCU, this parameter is not displayed.
• Previous button: Displays information about the consistency group before the current consistency group.
• Next button: Displays information about the consistency group after the current consistency group.
• Refresh button: Refreshes displayed information.
• Close button: Closes the CT Group Status pane.
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 44 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 = no timeout for Continuous Access XP