IBM 86655RY Hardware Maintenance Manual - Page 200

Note: these instructions are valid both when your operating system is accessible and when it is not accessible. If if is accessible, use the ServeRAID Manager. If it is not, boot the ServeRAID options CD. Recovery procedures for one defunct drive Follow the steps below when one hard disk drive is Defunct and all Logical Drives are working. To Replace a single Defunct Drive: 1. Right-click on defunct drive and choose "Replace Drive." 2. A pop-up message will appear. Replace the drive and please follow the directions. 3. If this does not work, gently remove the drive and reinsert. More than one defunct (DDD) drive, all logical drives in critical or OK state If a hot-spare (HSP) existed prior to the drive failures, the system should still run as long as the logical drives are configured as redundant. The logical drives in the array will be in the critical (CRT) state due to one drive in the array being defunct. Note: Because the operating system is functional, this procedure assumes you are using the ServeRAID Manager Utility within the operating system to recover. • Verify that you are in this state by left-clicking on the Defunct drives and noting the Array Letter in the drive information window. • One Defunct Drive should show an array letter, while the other should not. Perform the following steps to bring the logical drive from CRT to OKY status: 1. Highlight the Drive and right-click. 2. Choose "Replace Defunct Drive." 3. A pop-up message will appear. Follow the instructions and replace the drive. 4. Repeat these steps for each Defunct Drive. More than one defunct (DDD) drive and one or more arrays offline Note: The following procedure for multiple Defunct (DDD) drives assumes that the two or more Defunct drives are part of the same array. You can confirm this by using the ServeRAID Manager or Options CD and looking at the log file on another machine to determine the "inconsistent" drive. When you know which drive is "inconsistent", you can attempt to recover data. Note: Once you lose more than one drive in a set of RAID-5 or RAID-1 logical drives, loss of data is definitely a possibility. The steps below guide you through a recovery. However, a recovery may not be possible in every case. Warning: If you use the wrong order when you set the drive's state to ONL, data corruption results. See the following note to determine the last drive marked Defunct (DDD) by the ServeRAID controller. 1. Refer to "Using and understanding the ServeRAID Monitor Log" on page 188 or "Using ServeRAID Manager to determine the correct order to software replace" on page 187 for information on how to gather and interpret the Defunct Drive log. 190 Hardware Maintenance Manual: Netfinity 7600 - Type 8665 Models 1RY, 2RY