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SMART-2DH Array Controller Reference Guide
Writer: Pamela King Project: SMART-2DH Array Controller Reference Guide Comments: 295469-002
File Name: F-CH05.DOC Last Saved On: 2/27/98 11:38 AM
COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED
Capacity Expansion
Capacity expansion involves adding storage capacity to an array that has
already been configured. If an existing array is nearly full of data, you can
expand the capacity without disturbing the existing data. The SMART-2DH
Array Controller capacity expansion feature provides a way to add a new
physical drive to the array.
When you run the Array Configuration Utility, the program checks the drive
hardware and configuration. If the Array Configuration Utility discovers a
physical drive that is not being used, the configuration wizard leads you
through the steps of adding the drive.
NOTE
: You cannot use the Capacity Expansion feature if the disk controller
is configured for use with the Recovery Server option. In order to expand an
array when the controller is configured for the Recovery Server option:
1. Use the System Configuration Utility to turn off the Recovery Server feature,
2. Enter the Array Configuration Utility and use the capacity expansion feature,
3. After the expansion is complete, use the System Configuration Utility to
enable the Recovery Server feature.
Capacity Expansion Procedure
If you wish to bypass the configuration wizard for some reason, you may use the
procedures that follow to expand your array.
■
Install the new physical drive(s).
■
Assign the new physical drive(s) to an existing array. Existing logical
drive(s) will automatically expand across all of the physical drives,
including the newly added one(s).
■
Create a new logical drive to use the extra space on the expanded
array.