3ware Disk Array Configuration Utility36 3ware Escalade ATA RAID Controller User GuideSpecifying a Hot SpareThe Escalade ATA RAID Controller gives you the option to specify a hotspare from one of your Available Drives. If a valid hot spare (that is, a sparethat is the same size or lager than members of the redundant array) is specifiedand the array degrades, an event notification will be generated. The hot sparewill dynamically replace the failed drive in an array without user intervention.Select a hot spare by navigating to an Available Drive. The Toggle HotSpare verbiage at the bottom of the screen will be black if the drive can beused as a hot spare. Enter s to select the hot spare or to disable the hot spare ifit is already enabled.Note: Hot spare drives need to have the same or larger storagecapacity than the RAID 1, RAID 5 or RAID 10 drives.Changing an existing configuration1 Back up any disk arrays that contain data that you want to retain beforethe configuration change.2 Create new disk arrays following the instructions in the Determiningyour configuration, Creating a disk array and Deleting a disk arraysections. You may need to delete existing arrays to free up disks first.3 Boot, partition and format any new disk arrays or free disks.4 When you are finished configuring, restore from backup any data savedfrom previous disk arraysModifying a disk arrayTo modify an existing array you must first delete it then recreate it with thenew drives. As with all disk array operations, there is no way to modify anexisting array without overwriting data on the drives involved.The 7000/8000 series Escalades do not support the feature of OCE (OnlineCapacity Expansion).Deleting a disk arrayTo delete an array (see Figure 16) first select the array by navigating to it andhitting Enter. An asterisk in the left most column indicates the array isselected.
