Adaptec RAID 2100S Software User's Manual

Also see for 2100S - SCSI RAID Controller: Installation guide Installation guide Quick start guide Installation guide Installation guide

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Adaptec RAID 2100S Software User's Manual Manual pdf 92 page image

3-47Storage ManagerAssigning Hot SparesTo assign a drive as a hot spare, click Make Hotspare in the drive’sDevice Information window. Click Remove Hotspare to reassign anexisting hot spare drive as a normal drive.You should reboot your operating system to ensure that the hotspare drive is recognized correctly.Hot spares are reserved to automatically replace failed drives inRAID 1 or 0/1 and RAID 5 or 0/5 arrays and cannot be accessed bythe operating system for data storage. Hot spares can only protectdrives of equal or less capacity that are attached to the samecontroller as the hot spare.When a drive failure occurs in an array protected by a hot spare, thecontroller automatically starts rebuilding data onto the hot spare.During this process, Storage Manager swaps the positions of thefailed drive and the hot spare in the Logical Configuration View. Thefailed drive appears with a red failed flag in the former position ofthe hot spare, and the hot spare appears as a member of the arraygroup with a white flag indicating that a rebuild operation is inprocess. The array and LSU icons appear with yellow (degraded)flags.When the rebuild is complete, the hot spare icon and flags disappearand the drive is displayed as a normal member of the array. The redflag remains on the failed drive until that drive is replaced orreturned to Optimal status.To replace the failed drive, follow these steps:1 Follow the steps in your hardware documentation to removeand replace the failed drive.2 Click Make Optimal in the new drive’s Information window.The new drive becomes the hot spare, replacing the previoushot spare that is now a member of the rebuilt array group.Note: If you want to try using the drive again, select MakeOptimal without removing the drive. If the operation fails,you should replace the drive.