6-18controller Commandscontroller set automatic_failoverAutomatic failover allows you to replace a failed disk with areplacement disk. The controller then automatically assigns the diskyou insert as a failover disk without your having to first assign itwith the array set failover or array setglobal_failover command.Note that the automatic failover feature works only with disks thatreside in a SAF-TE or SES enclosure.To turn on or off automatic failover for the specified controller, usethe controller set automatic_failover command.Caution: The controller deletes any data on the replacementdisk when automatic failover is enabled and you remove thefailed disk and insert the replacement disk in the faileddisk’s slot.NotesA failover disk is a disk that you configure to automatically recoverdata from a failed partition/disk in a redundant array. To assign oneor more failover disks for a single array, you use the array setfailover command. To assign one or more failover disks for allarrays, you use the array set global_failover command.Although all array types accept failover assignments, only mirrorsets and RAID-5 sets use the failover assignment if a disk fails.(Mirror sets and RAID-5 sets are often referred to as redundantarrays). The main characteristic of these commands is that you must“manually” assign the failover disk to one or more arrays. In fact,you might consider the previously described failover mechanism as“manual failover”.The controller will assign a replacement drive as a failover disk onlyif the serial number of the drive is different from the serial numberof the drive it replaces.Syntaxcontroller set automatic_failover[/failover_enabled{=boolean}]/failover_enabled{=boolean}!
