User's Manual

Hard Drive Installation and Replacement
E-12 HP Smart Array 641/642 Controller User Guide
HP CONFIDENTIAL
Writer: John Turner File Name: m-appe hard drive installation & replacement
Codename: darkmatter - antimatter Part Number: 309311-001 Last Saved On: 11/7/02 5:07 PM
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Figure E-2: Array capacity expansion
The unused capacity on the enlarged array can now be used to create an additional
logical drive, with a different fault-tolerance setting if necessary.
Alternatively, the unused capacity can be used to increase the size of one of the
original logical drives; this process is logical drive capacity extension. Another
method for carrying out logical drive capacity extension is to delete an existing
logical drive and then to add the freed capacity to another logical drive.
Only ACU supports capacity extension. Also, not all operating systems allow
extension to be carried out while the system is online (refer to Chapter 5 for details).