IBM 86625RY Hardware Maintenance Manual - Page 116

1. Select the desired logical drive from the Main screen of the Administration and Monitoring Program. 2. Select Initialize to initialize the drive. 3. If you have initialized a RAID level-5 drive, you must synchronize to ensure data integrity. Go to "Synchronizing logical drives." Synchronizing logical drives: The purpose of synchronizing logical drives is to compute and write the parity data on the selected drives. If the type of ServeRAID adapter or controller you are using does not support the auto-synchronization and data-scrubbing features, manually synchronize the RAID level-1 and RAID level-5 logical drives weekly. This does not alter data on the drive. Synchronizing a logical drive verifies that the data redundancy for the logical drive is correct. To synchronize a logical drive: 1. Select the desired logical drive from the Main screen of the Administration and Monitoring Program. 2. Select Synchronize to synchronize the drive. 3. The synchronization begins automatically and reports progress information on the screen. Note Only one synchronization command can be active at a time. Unblocking logical drives: When the ServeRAID adapter or controller performs a Rebuild operation on an array, it reconstructs the data that was stored in RAID level-1 and RAID level-5 logical drives. However, the ServeRAID adapter or controller cannot reconstruct the data that was stored in any RAID level-0 logical drives in that array. The data in the RAID level-0 logical drives is blocked when the ServeRAID adapter or controller detects that the array is valid, but the data might be damaged. 108 Netfinity Server HMM