HP XP P9000 Auto LUN Software - Manual (Page 26)

group, volumes in Grp1-1 will not be migrated to any other parity group, and no volumes will be
migrated to Grp1-1. This action protects a parity group from degraded I/O speeds.
NOTE: In a manual migration plan, you can specify a volume in a fixed parity group as a target
or a source volume.
Auto Migration Parameters
The current values of Auto Migration Parameters are initialized each time a change is made to the
storage system configuration. For example, the parameter values are initialized when new drives
or LDEVs are installed. Keep in mind that changes to Auto Migration Parameters may be required
each time a change is made to the storage system configuration.
Auto LUN allows you to automate the creation and execution of migration plans. If you automate
creation and execution of migration plans, Auto LUN analyzes usage rates of storage system
resources and the speed of hard disk drives at specified intervals, and then auto migration plans
are performed at the specified migration time.
26 Auto LUN planning