HP StorageWorks XP Remote Web Console Software User Manual
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a.
Connect to the storage system that will be the MCU for the new pair(s), and log on with
Administrator or XP Continuous Access write access.
b.
Make sure that the MCU remote copy ports are configured to the initiator port.
c.
Make sure that the correct RCU CU (contains the LUs that will be the S-VOLs) has been
added to the correct MCU CU (contains the LUs that will be the P-VOLs).
3.
Click the Pair Operation tab, and select the CU grouping, port, or host group that contains
the LU(s) that will be the P-VOL(s) of the new pairs. Make sure that you selected the proper
CU grouping, port, or host group. Use the Display Filter as needed to display the desired LUs
(for example, select SMPL status only).
4.
Select the LU(s) which will be the P-VOL(s) of the new XP Continuous Access pair(s). You can
create multiple pairs at the same time only when: (1) the S-VOLs are in the same RCU, and
(2) the pairs have the same copy mode (sync or async). You cannot create XP Continuous
Access Synchronous pairs and XP Continuous Access Asynchronous pairs at the same time.
If you create multiple pairs at the same time using LUs of the different CU numbers, you must
add an RCU to CU Free beforehand. Even if you have added an RCU to a CU, you cannot
create pairs.
5.
Right-click the LU(s), click Paircreate, and then select the desired pair mode (Synchronous or
Asynchronous) to open the Paircreate dialog box (see
“Paircreate Dialog Box for Synchronous
and
“Paircreate Dialog Box for Asynchronous Pairs” (page 121)
).
The update copy mode, sync or async, has the greatest impact on performance and must be
considered carefully (see
“Update Copy Operation” (page 17)
). Factors to consider in mode
selection include (but are not limited to) the use of XP Continuous Access (for disaster recovery
or migration), the number of pairs, and the write I/O activity to the P-VOLs.
6.
On the Paircreate dialog box, enter the desired S-VOL for the pair, and select the RCU. If you
are creating multiple pairs, select the S-VOL for the P-VOL being displayed. The S-VOLs for
the rest of the P-VOLs will be assigned automatically according to the LUN. For example, if
you select three P-VOLs and select LUN001 as the S-VOL for the first P-VOL, the S-VOLs for
the two other P-VOLs will be LUN002 and LUN003.
7.
Select the desired initial copy options and pair options for the pair(s) being created. The initial
copy options and pair options you select are applied to all pairs being created, and you can
modify the options for each pair as needed before starting the paircreate operations (see step
9).
8.
Click Set to close the Paircreate dialog box. The requested paircreate operations are displayed
in the preview list.
9.
Verify the requested operation(s) displayed in the preview list. Make sure that all XP Continuous
Access options for each new pair are correct. After a pair has been created, you can only
change the fence level (sync only) and error level (async only) options.
To change one or more operation(s), select the operation(s) from the preview list, right-click,
and click Modify. To remove one or more operations, select the operation(s) from the preview
list, right-click, and click Delete. To cancel all operations, select all the operations in the preview
list, right-click, and click the Delete command, or click Cancel.
To set the parameters on multiple volumes at once without changing individual parameters
per volume, make the box for parameters that you do not want to change blank. Only the
parameters that you input will be changed.
10.
To start the operation(s), click the Apply button.
The MCU starts the initial copy operations according to the initial copy priority and the
maximum initial copy activities setting on the System Option window.
If one or more operation(s) did not start normally, the preview list displays only the operation(s)
that did not start normally. An error code is displayed on the Error Code column in the preview
Creating XP Continuous Access Pairs
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