IBM 866011U Hardware Maintenance Manual - Page 45

is running. If a defective sector is found, it is automatically repaired. As a result, you no longer have to synchronize RAID level 1 and RAID level 5 logical drives on a weekly basis. Synchronizing a logical drive verifies that the data redundancy for the logical drive is correct. For RAID level 5, the parity bit is computed and then written to the parity drive. To synchronize a logical drive: 1. Select the logical drive that you want to synchronize from the Main Screen of the Administration and Monitoring utility program. A screen similar to the following appears. Logical Drive Information Logical Drive Number Blocked Part of Array Part of Merge Group Date Created State Size RAID Level Write Policy Read Ahead Strip Unit Size Number of Chunks Stripe Order 1 No A 1 05/19/97 OKY 100MB 0 WT On 8 KB 3 1,1 1,2 1,4 Unblock Initialize Synchronize OK 2. Click on Synchronize to synchronize the drive. The synchronization process begins and reports progress information on the screen. Adapter 1 Synchronization Progress Log Drv 0 53% Log Drv 1 Log Drv 2 Log Drv 3 Log Drv 4 Log Drv 5 Log Drv 6 Log Drv 7 Note Only one synchronization command can be active at a time. Netfinity 5500 - Type 8660 37