Release Notes

RAID policies
22 Dell PS Series Configuration Guide
6 RAID policies
Each array in a PS Series array group is configured with a single RAID policy. Arrays (or group members)
within the same storage pool that have the same RAID policy cooperatively work to host volumes by
distributing those volumes over multiple arrays. Two things that are defined by the RAID policy are:
• RAID level
• Hot-spare configuration
Each array implements a default RAID policy that includes a hot-spare.
The following report contains information about performance characteristics of the RAID policies under normal
and failure conditions and help when choosing the RAID policy that meets the requirements for specific
applications and environments. For a complete understanding of supported RAID policies for PS Series
Group Members, see the report at:
http://en.community.dell.com/dell-groups/dtcmedia/m/mediagallery/19861480