HP XP7 Storage User Manual
Page 64
1.
For Maximum Initial Copy Activities, specify the number of volumes to be copied
concurrently per initial copy operation. The range is from 1 to 512 volumes; 64 is the
default. Note the following:
- This setting may impact performance on the primary system. This depends on the number
you specify and the amount of I/O activity. The default may or may not limit the impact
on performance, depending on your number of data paths, pairs, and so on. You should
consider these factors when making a selection.
- When you create or resychronize a greater number of pairs than you specify in Maximum
Initial Copy Activities, the system processes the specified maximum number, and starts
additional pairs after one of the specified number is synchronized.
For example, if you specify 70 for Maximum Initial Copy Activities and then create 75
pairs, the system starts the first 70 pairs but does not start the 71st pair until one of the
pairs is synchronized.
2.
For Path Blockade Watch, enter the number of seconds for the system to monitor blocked
paths. The range is from 2 to 45 seconds; 40 is the default.
If all paths become monitored because of path error, an MIH may occur in the host.
Therefore, the time you specify must be less than the host’s MIH timer setting.
3.
For Path Blockade SIM Watch, enter the number of seconds for the system to monitor SIMs
reported for blocked paths. The range is from 2 to 100 seconds.
4.
For Services SIM of Remote Copy, specify whether or not services SIMs in the remote CU
are reported to the host.
5.
Change CU Options as needed. Settings apply to the CU only.
1.
For Maximum Initial Copy Activities, select one of the following:
- Enable to enable and set or reset the maximum number of initial copies.
- Disable to place no restriction on number of initial copies and rely only on the Initial
Copy Priority setting in the Create Pairs wizard.
2.
Select the CU with the options to be changed, then click Change CU Options. If you do
not want to change CU options, click Finish.
3.
In the Change CU Options dialog box, for Maximum Initial Copy Activities, specify the
number of volumes to be copied concurrently per initial copy operation for the CU. The
range is from 1 to 16 volumes.
This option is available only when Maximum Initial Copy Activities is Enabled (step a).
4.
For PPRC support by host, specify whether to create sense information having compatibility
with IBM PPRC.
- When you change the PPRC support option for the P-VOL, the pair split/resync operations
are unnecessary.
- When changing PPRC support option for the S-VOL, change the option in the primary
storage system and then split and resync the pairs.
5.
For Services SIM of Remote Copy, specify whether or not services SIMs in the remote CU
are reported to the host.
6.
Click OK.
6.
In the Edit Remote Replica Options window, click Finish.
7.
In the Confirm window, review the settings and enter a task name in the Task Name box.
8.
Click Apply to save your settings in the system.
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