HP StorageWorks 2000 Series Reference Manual page 183

If a service technician tells you to disable partner firmware upgrade:
1. Select Manage > General Config > System Configuration.
2. Set Partner Firmware Upgrade to Disabled.
You can change the priority at which the Verify, Reconstruct, Expand, and Initialize
utilities run when there are active I/O operations competing for the system's
controllers.
High Use when your highest priority is to get the system back to a fully
fault-tolerant state. This causes heavy I/O with the host to be slower
than normal. This value is the default.
Medium Use when you want to balance data streaming with data redundancy.
Low Use when streaming data without interruption, such as for a web
server, is more important than data redundancy. This enables the
Reconstruct or other utility to run at a slower rate with minimal
effect on host I/O.
To change utility priority:
1. Select Manage > General Config > System Configuration.
2. For Utility Priority, select a priority.
3. Click Change System Configuration.