Chapter 8. Administration - Configure
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Draft Document for Review August 30, 2007 12:59 am
7065Admin_Configure.fm
Figure 8-41 New hot spare drive appears
To unassign a hot spare drive manually, select it, and click Unassign.
8.3.3 Create Logical Drives
This task organizes the disk drives into arrays and creates logical drives in an array. Before
you create logical drives, you should understand the differences between the possible RAID
levels, as found in 4.1, “Storage subsystem concepts” on page 45.
A logical drive is the entity that is available to the host attached to the storage subsystem. You
can make arrays out of the unconfigured capacity of a storage subsystem, and you can make
logical drives in the free capacity of an array. Unconfigured capacity is the disk drives that are
not already assigned to an array. Free capacity is space in an array that has not been
assigned to a logical drive.
Figure 8-42 shows a configured storage subsystem with nine disk drives. There is one array
of six disk drives, which has been configured into three logical drives. One disk drive has
been configured as a hot spare and two disk drives remain unconfigured.
