IBM 86625RY Hardware Maintenance Manual - Page 119
Manage Disk Arrays, Logical Drive Migration, Add Physical Drives, MB hard disk drive
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Logical Drive 0 Logical Drive 1 500 MB 1000 MB Free Space 2800 MB Disk 1 Disk 2 Disk 3 Before LDM Logical Drive 0 Logical Drive 1 500 MB 1000 MB 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 RAID level-5 logical drives (one 500 MB and 1000 MB) and 2800 MB of free space. If you use the logical drive migration procedure and add a 2150 MB hard disk drive to increase the amount of free space, the end result will be two RAID level-5 logical drives (one 500 MB and one 1000 MB) and with 4950 MB of free space. You can increase the size of all the logical drives proportionally in a disk array. This is useful when you want to increase the size of the currently defined logical drives. Refer to the following illustration. Logical Drive 0 Logical Drive 1 500 MB 1000 MB Free Space 2800 MB Disk 1 Disk 2 Disk 3 Before LDM Logical Drive 0 Logical Drive 1 750 MB 1500 MB Disk 1 Free Space Disk 2 Disk 3 After LDM 4200 MB Disk 4 For example, an array uses three 2150 MB hard disk drives that are configured as two RAID level-5 logical drives (one 500 MB and 1000 MB) and 2800 MB of free space. If you use the logical drive migration procedure and add a 2150 MB hard disk drive to proportionally increase the size of the disk array, the end result will be two RAID level-5 logical drives (one 750 MB and 1500 MB) and 4200 MB of free space. To add a physical device: 1. Select the icon on the Tool Bar or select Manage Disk Arrays from the Advanced pull-down menu; then, select Logical Drive Migration. A screen similar to the following appears. 2. Select Add Physical Drive(s). A prompt appears requesting that you select from 1 to 3 Ready (RDY) drives to add to the existing array. Netfinity 5500 M20 - Type 8662 111
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