System Options That Affect Performance - HP XP7 User Manual

3. In the Release Reserved Mainframe CTGs window, for Task Name, type a name for the task,
and then click Apply.
The reserved CG is released.

System options that affect performance

The following system options that affect performance. They can be enabled and disabled using
RWC:
Swap & Freeze. Enable this system option to suppress copy operations (the S-VOLs to remain
unchanged) during pair restoration using Quick Restore. Differential data is not copied to the
new S-VOL.
HOST I/O Performance. Enable this system option to reduce the impact of copy operations
regardless of the workload and to maximize I/O performance.
NOTE:
Copy Pace. Enable this system option to determine the rate at which the HP XP7 storage system
copies data, to suppress copy processing, and to maximize host I/O performance.
Use one of the following processing-suppression/performance-improvement levels:
◦
(FC Z and FCSE only) FC Slower Copy1
◦
(FC Z and FCSE only) FC Slower Copy2
◦
Copy Pace Ext. Slower1. This is the third most effective
processing-suppression/performance-improvement level.
◦
Copy Pace Ext. Slower2. This is the second most effective
processing-suppression/performance-improvement level.
◦
Copy Pace Ext. None. This is the most effective
processing-suppression/performance-improvement level. This level stops copy processing.
This system option increases the copy time, which slows copy operations.
Workflow for setting up Business Copy Z 33