HP XP P9500 Storage - Manual (Page 36)

NOTE: Your service representative must enable the Copy Threshold option.
•
Copy Pace options. Reduce the effect on host I/O performance by suppressing copy processing
in DUPLEX status. The system uses this option when pairs are in DUPLEX status only. This option
does not have an effect if the pair is in other statuses.
You can choose from three levels of processing-suppression/performance-improvement:
◦
Copy Pace Ext. None (usable since program version 70-03-01-xx/xx). This is the most
effective option—stops copy processing.
NOTE: With this option, synchronization when a pair is split tends to be slower, which
prolongs the time that the pair is in process of Quick Split (“V-Split/SUSPVS” status) or
in the process of Steady Split (“SP-Pend/TRANS” status). If this poses a problem, complete
one of the following:
– Minimize the time that the pair is in “DUPLEX” status so that synchronization at the
pair split does not require so much time.
– Use one of the other Copy Pace options.
◦ Copy Pace Ext. Slower2—2nd most effective
◦ Copy Pace Ext. Slower1—3rd most effective
Setting performance options
1. In the tree, click Replications > Local Replications.
2. In the Local Replications window, click Edit Local Replica Options.
3. In the Edit Local Replica Options window, for System Type, select Business Copy Z.
4. In the System Options list, select the option you want and click Enable. You may need to scroll
down to the option you want. Copy Threshold must be enabled by your service representative.
5. Click Finish.
6. In the Confirm window, enter a Task Name then click Apply.
36 Performing configuration operations