IBM 86624RY Maintenance Manual - Page 113

Note The number of hard disk drives in the array determines the RAID levels available for the array. If the array contains one hard disk drive, you can select only RAID level-0 for the logical drive. If the array contains two hard disk drives, you can select RAID level-0 or RAID level-1 for the logical drive. If the array contains three or more hard disk drives, you can select RAID level-0, RAID level-1, or RAID level-5 for the logical drive. 5. Enter the Requested Space in the entry field. The ServeRAID program uses the maximum available space for the selected RAID level to calculate the default value that it assigns. Note The actual logical drive size might be slightly different from what you type in the Requested Space field. The RAID level and the number of hard disk drives determine the size of the logical drive. For example, a disk array consisting of three, 1 GB hard disk drives with a requested RAID level-0 logical 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. 6. Select OK to create the disk array. Deleting disk arrays: Deleting a disk array deletes all logical drives that are defined in that disk array. All data and programs on the logical drives in the disk array will be lost during this procedure. To delete a disk array: 1. Select the on the Tool Bar or select Manage Disk Arrays from the Advanced pull-down menu; then, select Delete Disk Array. A screen similar to the following appears. Netfinity 5500 M20 - Type 8662 105