Adaptec 2254100-R - SATA RAID 2410SA SGL/64 Controller, Software Reference Manual, Page: 177 / 233

6-18
controller Commands
controller set automatic_failover
Automatic failover allows you to replace a failed disk with a
replacement disk. The controller then automatically assigns the disk
you insert as a failover disk without your having to first assign it
with the
array set failover
or
array set
global_failover
command.
Note that the automatic failover feature works only with disks that
reside in a SAF-TE or SES enclosure.
To turn on or off automatic failover for the specified controller, use
the
controller set automatic_failover
command.
Caution:
The controller deletes any data on the replacement
disk when automatic failover is enabled and you remove the
failed disk and insert the replacement disk in the failed
disk’s slot.
Notes
A failover disk is a disk that you configure to automatically recover
data from a failed partition/disk in a redundant array. To assign one
or more failover disks for a single array, you use the
array set
failover
command. To assign one or more failover disks for all
arrays, you use the
array set global_failover
command.
Although all array types accept failover assignments, only mirror
sets and RAID-5 sets use the failover assignment if a disk fails.
(Mirror sets and RAID-5 sets are often referred to as redundant
arrays). 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 only
if the serial number of the drive is different from the serial number
of the drive it replaces.
Syntax
controller set automatic_failover
[/failover_enabled{=boolean}]
/failover_enabled{=boolean}
!