HP StorageWorks XP12000 User Manual page 104

NOTE:
Ensure that all assigned S-VOLs are available. If the automatically assigned S-VOLs are already
used for other operations, modify the S-VOL individually (see
LUs for instructions).
• 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.
• Initial Copy: Initial copy mode. Entire: Copy all data. No Copy: Do not copy data. The
default is Entire.
• Initial Copy Pace (From 1 to 15): Number of tracks for initial copy. The default is 15.
• Priority (From 1 to 256): Priority (scheduling order) of initial copy operation. The default is 32.
• Difference Management: Select Auto, Cylinder, or Track. The default is Auto. When you select
Auto, either Cylinder or Track is selected depending on basic size of the logical unit (LU).
• Asynchronous Parameters: Only for Asynchronous pairs.
• CT Group: Consistency group already registered.
NOTE:
Only Continuous Access XP Asynchronous pairs belonging to the same CLPR can be allocated
to one consistency group. For more information about CLPRs, see the
Disk/Cache Partition user guide
• Error Level: Error level for Continuous Access XP Async pairs, Group, or LU.
• Cancel button: Cancels settings made, and closes the Paircreate pane.
• Set button: Sets parameters, and closes the Paircreate pane.
When you create two or more pairs at one time, initial copy options are the same for all pairs. You
can modify these initial copy options for individual pairs as needed. For instructions, see
parameters and deleting
XP initial copy and pair options of the Paircreate
The Use Time-Saving Mode option executes the specified paircreate operations quickly (that is, requests
for multiple pairs are entered simultaneously).
1. Ensure that volumes that will be Continuous Access XP S-VOLs are offline from all hosts.
2. Connect to the disk array containing P-VOLs of the pairs you are creating, and start Continuous
Access XP. RCPs or Initiator ports must be configured (see
be already registered (see
3. From the Volume list on the Continuous Access XP main pane, click the LUs that will be P-VOLs of
the Continuous Access XP volume pairs. You can select one or more volumes and establish one or
more pairs at one time only if S-VOLs are in the same RCU and pairs will have the same copy
mode (Sync or Async). You cannot start Continuous Access XP Sync and Continuous Access XP
Async pairs at the same time.
104
Continuous Access XP for the Array
.
LUs. For further information about initial copy options, see
Registering RCUs (Add
Modifying parameters and deleting
pane.
Configuring MCU
RCU)).
HP StorageWorks XP
Modifying
Continuous Access
ports), and RCUs must