HP StorageWorks XP Remote Web Console Software - Manual (Page 108)

If the RCU accepts write I/Os for a split S-VOL (S-VOL write enable), the RCU also tracks S-VOL
cylinders updated. When the split/suspended pair is resumed, the MCU merges the P-VOL and
S-VOL cylinder bitmaps to determine out-of-sync cylinders.
Use the Pairresync command to resume split/suspended XP Continuous Access pairs. When the
Pairresync command is selected, the Pairresync pane appears. Use the Pairresync pane to change
pair options, and select the resync range option (asynchronous) for selected pairs.
NOTE: Resyncing suspended LDEV pairs within an XP Continuous Access LUSE pair is not
supported.
Figure 56 Pairresync pane
•
P-VOL: Port - G-ID - LUN of the selected volume.
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 XP External Storage
Software user guide: HP XP12000 Disk Array, HP XP10000 Disk Array, HP 200 Storage
Virtualization System.
•
P-VOL Fence Level: Fence level.
Never: Never fence the operation. ◦
◦ Data: Fence when the MCU cannot successfully execute an update copy operation for
any reason.
◦ Status: Fence only if the MCU cannot change the S-VOL status to the same status as the
P-VOL. For synchronous mode only.
When asynchronous pairs are created, Never is set automatically.
108 Performing XP Continuous Access configuration operations