HP StorageWorks HSG80 ACS Solution Software V8.8 for Novell NetWare Installation and Configuration Guide (AA-RV1MA-TE, March 2005)

Planning Storage Configurations
87HSG80 ACS Solution Software V8.8 for Novell NetWare Installation and Configuration Guide
unpartitioned storageset or device. Partitions are separately addressable storage
units; therefore, you can partition a single storageset to service more than one user
group or application.
Defining a Partition
Partitions are expressed as a percentage of the storageset or single disk unit that
contains them:
■ Mirrorsets and single disk units—the controller allocates the largest whole
number of blocks that are equal to or less than the percentage you specify.
■ RAIDsets and stripesets—the controller allocates the largest whole number of
stripes that are less than or equal to the percentage you specify.
— Stripesets—the stripe size = chunk size × number of members.
— RAIDsets—the stripe size = chunk size × (number of members minus 1)
An unpartitioned storage unit has more capacity than a partition that uses the
whole unit because each partition requires a small amount of disk space for
metadata.