HP StorageWorks XP Remote Web Console Software User Manual
Page 101
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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 as the basis for managing the
differential data. The default setting is Auto. When you select Auto, either Cylinder or Track
is selected depending on the basic size of the logical unit (LU). See
for further information on this option.
NOTE:
This option cannot be changed after a pair has been added.
•
Asynchronous Parameters: Only for Asynchronous pairs.
CT Group: Consistency group already registered.
◦
NOTE:
Only XP Continuous Access Asynchronous pairs belonging to the same CLPR
can be allocated to one consistency group. For more information about CLPRs, see the
HP StorageWorks XP Disk/Cache Partition user guide for XP12000/XP10000 Disk Arrays
and SVS200.
◦
Error Level: Error level for XP Continuous Access 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
“Modifying parameters and deleting LUs” (page 96)
. For further information about initial copy
options, see
“XP Continuous Access initial copy and pair options of the Paircreate pane” (page 103)
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 XP Continuous Access S-VOLs are offline from all hosts.
2.
Connect to the disk array containing P-VOLs of the pairs you are creating, and start XP
Continuous Access. RCPs or Initiator ports must be configured (see
), and RCUs must be already registered (see
).
3.
From the Volume list on the XP Continuous Access main pane, click the LUs that will be P-VOLs
of the XP Continuous Access 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 XP Continuous Access Sync and XP
Continuous Access Async pairs at the same time.
4.
Right-click, click Paircreate, and click the pair mode (Synchronous or Asynchronous). The
Paircreate pane appears.
Pair mode specifies the update copy mode (see
“Update copy operation” (page 13)
) for new
pairs: Synchronous or Asynchronous. The mode selected has the greatest impact on
performance and must be considered carefully. Factors in mode selection include (but are not
limited to) the use of XP Continuous Access (for disaster recovery or migration), number of
pairs, and write I/O activity to P-VOLs.
5.
From the Paircreate pane, enter the S-VOL for the pair, select the RCU, and select initial copy
options for pairs being created (see
“Creating XP Continuous Access volume pairs (Paircreate)”
).
Creating XP Continuous Access volume pairs (Paircreate)
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