Managing failover options and hotspares, Managing failover options and hotspares d-8 – Asus Adaptec 2025 ZCR User Manual

Page 113

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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

!

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