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D-8
Command Line Interface
Managing Failover Options and Hotspares
To assign one or more hotspares to a single array, use the
container
set
failover
command. To assign one or more spare disks for all
arrays, use the
container
set
global_failover
command. These
commands allow you to add hotspares to an array prior to a drive
failure so that the array contains the resources it needs to survive a
failure.
Alternatively, you can use the automatic failover commands that
allow you to remove a failed drive and add a hotspare in its place.
The controller automatically assigns the new hotspare to replace
the failed drive without your having to first assign it using the
container
set failover
or
container
set
global_failover
commands.
Note: Automatic failover works only with disks that reside in
an SAF-TE- or SES-enabled enclosure.
Caution: During hotspare assignment, all data is deleted from
the hotspare.
The following failover topics are discussed:
■ Displaying the Controller’s Automatic Failover Status
■ Enabling Automatic Failover
Displaying the Controller’s Automatic Failover Status
To display a controller’s automatic failover status, use the
controller
show automatic_failover
command. In the following
example, automatic failover is
DISABLED
:
AAC0> controller show automatic_failover
Executing: controller show automatic_failover
Automatic failover DISABLED
!