Pair Settings Parameter List (Paircreate) - HP StorageWorks XP12000 User Manual

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
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.
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
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). 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.
10.
In the Continuous Access XP main pane, verify that new Continuous Access XP pairs are displayed
correctly (COPY status) in the Volume list. To monitor the status of new pairs, click Refresh to update
information in the Volume list, or use the Pairdisplay pane (see
status for LUs and LDEVs
The Paircreate operation is rejected if the P-VOL is in the correction access or correction copy state.
If this occurs, wait for the volume state to change and repeat this procedure. If the status is not
displayed correctly, ensure that the correct CU image is selected.
CAUTION:
If a timeout error occurs when the Use Time-Saving Mode option is selected, access the Continuous
Access XP main pane, and confirm the volumes on which the paircreate operation could not be
performed. Deselect the Use Time-Saving Mode option for failed volumes, and retry the paircreate
operation.
After the Paircreate pane closes, the list changes to the Pair Settings Parameter list (Paircreate).
Figure 50 Pair Settings Parameter list (Paircreate)
• Port, Group, and LUN of the LU in the connected disk array.
• S/N and SSID of the RCU (MCU if you are connected to the RCU).
• Port, Group, and LUN of the LU to be the S-VOL.
• Type: Synchronous or Asynchronous of the pair created.
• Mode: Entire: Copy all cylinders. No Copy: Do not copy.
• Fence: Conditions under which the MCU rejects write operations to the P-VOL: Never, Data,
or Status.
• Pace: Number of tracks (1-15) for initial copy.
Update copy
Creating Continuous Access XP volume pairs
Modifying parameters and deleting
(Pairdisplay)) to monitor detailed status of each pair.
operations) for new pairs: Synchronous
(Paircreate)).
LUs).
Modifying parameters and deleting
Viewing Continuous Access XP pair
Continuous Access XP user guide
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