IBM 866011U Hardware Maintenance Manual - Page 43

Create Logical Drive Array Free ID Space MB) A 1762 A 1762 B 1906 Raid Level 0 Requested Space 881 OK Cancel 2. Select the disk array ID for which you want to create a logical drive. 3. Select the RAID level that you want to assign to the logical drive from the pull-down list. The RAID levels available depend on the number of hard disk drives that you select for the disk array. Notes: a. If you have one hard disk drive, the logical drive can be only RAID level 0. b. If you have two or more hard disk drives, the logical drive can be RAID level 0 or 1. c. If you have three or more hard disk drives, the logical drive can be RAID level 0, 1, or 5. d. If you plan to use the Change RAID Level feature of logical drive migration, you must assign the same RAID level to all of the logical drives in the array. See "Changing RAID levels" on page 39 for more information. 4. Type the size, in megabytes, that you want to assign to the logical drive in the Requested Space entry field. Notes: a. The Requested Space default value is calculated as the maximum logical drive size available for the RAID level assigned. b. The Requested Space must be between 2 MB and the maximum available. c. The actual logical drive size that appears might be slightly different from what you type in the Requested Space field. The size of a logical drive is determined by the RAID level and the number of hard disk drives. For example, a disk array consisting of three, 1 GB hard disk drives with a requested RAID level 0 drive of 1000 MB will actually contain only 999 MB because the data is striped across all three drives, with 333 MB on each drive. 5. Click on OK to create the logical drive. 6. You must initialize all new logical drives before storing data in them. Continue with "Initializing logical drives" on page 36. Netfinity 5500 - Type 8660 35