Paircreate Pane - HP xp12000 User Manual

• 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:
allocated to one consistency group. For more information about CLPRs, see the HP StorageWorks
XP 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
"Continuous Access 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
must 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.
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
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 Continuous
Access XP (for disaster recovery or migration), number of pairs, and write I/O activity to P-VOLs.
From the Paircreate pane, enter the S-VOL for the pair, select the RCU, and select initial copy options
5.
for pairs being created (see
6. Click Set to close the Paircreate pane and set parameters.
The list changes to the Pair Settings Parameter list (Paircreate). The Pair Settings Parameter list
(Paircreate) is updated by parameter settings and displays all pairs being created. Initial copy options
and pair options selected are applied to all pairs, but you can modify options for each pair
individually as needed (see
7. From the Pair Settings Parameter list (Paircreate), check the RCU S/N and SSID, S-VOL, and copy
options for each pair. You can modify options as needed (see
LUs" on page 90). Ensure that all Continuous Access XP options for each new pair are correct.
8. To execute the paircreate requests quickly, select the Use Time-Saving Mode check box above the Pair
Settings Parameter list (Paircreate).
9. Click Apply on the Continuous Access XP main pane to create (start) specified Continuous Access XP
pairs. The MCU starts initial copy operations according to the initial copy priority and maximum initial
copy activities setting of the RCU.
94 Continuous Access XP for the XP12000/XP10000
Only Continuous Access XP Asynchronous pairs belonging to the same CLPR can be
LUs" on page 90. For further information about initial copy options, see
"Registering RCUs (Add
"Creating Continuous Access XP volume pairs
"Modifying parameters and deleting
pane" on page 95.
"Configuring MCU ports" on page 63), and RCUs
RCU)" on page 66).
"Update copy operations" on page 19) for new pairs:
LUs" on page 90).
"Modifying parameters and deleting
"Modifying
(Paircreate)" on page 93).