HP StorageWorks XP Continuous Access User Guide: HP XP12000 Disk Array, HP XP10000 Disk Array, HP 200 Storage Virtualization System (T1711-96025, May 2011)

Figure 54 Pairsplit-r pane
• Volume: 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.
• S-VOL Write: Default is Disable.
Enable: The S-VOL of this XP Continuous Access pair is available to receive read and
write I/Os while the XP Continuous Access pair is split. If you select Enable and you want
◦
to resync the pair later, select S-VOL in the Suspend Kind option to ensure that P-VOL and
S-VOL bitmaps are merged at the MCU. This option is available only when the selected
volume is an XP Continuous Access P-VOL.
◦ Disable: The S-VOL of this pair accepts I/Os only while the pair is split.
• Suspend Kind: Default is S-VOL.
S-VOL: The P-VOL accepts all subsequent write I/O operations, and the MCU tracks
updates while the pair is split. Subsequent write I/O operations to the P-VOL are permitted
◦
or rejected, depending on fence level of the pair. This setting is available from the MCU
and RCU. Used this setting to keep the P-VOL online. All XP Continuous Access
Asynchronous pairs have this setting.
◦ P-VOL Failure (available only for XP Continuous Access Synchronous and only when
connected to the MCU): The MCU rejects all write I/O operations to the P-VOL while the
Splitting XP Continuous Access pairs (Pairsplit-r) 105