IBM 86605SU Maintenance Manual - Page 45
Adding a Physical Drive, existing disk arrays.
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Change RAID Level Options: Change array B from Raid 5 to Raid 0 Logical Drive 0 1 Raid Level 5 5 Size (MB) 1000 1000 OK Cancel 3. Select a migrating option from the pull-down list. Note The affected logical drives appear based on the migrating option selected. 4. Click on OK to proceed; then, click on OK to verify the operation. 5. Select a Ready (RDY) drive to add to the array if you are migrating to RAID level 5. Note If you are migrating to RAID level 0, the last drive defined in the array becomes RDY. Adding a Physical Drive: You can expand currently defined arrays to new sizes by adding one to three new hard disk drives. The ServeRAID controller supports adding new space to a disk array as follows: You can increase the free space in a disk array without adjusting the size of the logical drives. This is useful when you need to add logical drives to your existing disk arrays. Refer to the following illustration. Logical Drive 0 Logical Drive 1 500 MB 1000 MB Logical Drive 0 Logical Drive 1 500 MB 1000 MB Free Space 2800 MB Disk 1 Disk 2 Disk 3 Before LDM Free Space 4950 MB Disk 1 Disk 2 Disk 3 After LDM Disk 4 For example, an existing disk array uses three, 2150 MB hard disk drives that are configured as two 40 Netfinity Server HMM
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