Creating Continuous Access Xp Volume Pairs (Paircreate) - HP xp12000 User Manual

Creating Continuous Access XP volume pairs (Paircreate)

Use the Paircreate command to create one or more Continuous Access XP pairs. When the Paircreate
command is selected, the Paircreate pane appears. Use the Paircreate pane to select the S-VOL, RCU, and
initial copy options for pairs being created.
NOTE: Select the appropriate CU image before creating Continuous Access XP pairs.
Figure 46 Paircreate pane
• Port - Group - LUN:
• P-VOL: Port number - Group - LUN of the primary volume (P-VOL), CLPR number, and CLPR name.
NOTE:
volume. For details about external volumes, see the HP StorageWorks External Storage XP user
guide.
• S-VOL: Secondary volume (S-VOL). Specify each item as follows: Port: 1A-2R, Group: 00-7F, LUN:
00-FF. If you select two or more LUs as P-VOLs in the Volume list, select an S-VOL for the P-VOL of the
lowest LUN. S-VOLs for the remainder of the P-VOLs are automatically assigned according to the
LUN. For example, if you select three LUs on the Volume list and select LUN01 as S-VOL for the first
P-VOL, S-VOLs of following P-VOLs are LUN02 and LUN03.
NOTE:
already used for other operations, modify the S-VOL individually (see
deleting
• RCU: RCU for the Continuous Access XP pairs being created. RCUs added to the MCU appear. For CU
Free, the drop-down list includes the serial number, controller ID, path group ID, and path type. For CUs
other than CU Free, the drop-down list includes the serial number, CU number, SSID, path type, and
controller ID. The RCU must be the same for all pairs being created during one operation.
• P-VOL Fence level: Conditions under which the MCU rejects write operations to the P-VOL.
• Never: Never fence the operation. When asynchronous pairs are created, Never is set
automatically.
• 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. This
option is only for synchronous mode.
• Initial Copy Parameters: Initial copy options.
If # is added to the end of the LDEV number, such as 00:3C#, the LDEV is an external
Ensure that all assigned S-VOLs are available. If the automatically assigned S-VOLs are
LUs" on page 90 for instructions).
Continuous Access XP user guide for the XP12000/XP10000
"Modifying parameters and
93