CLI Guide

device mirror-isolation enable
Enables mirror isolation on the specified clusters.
Contexts
All contexts.
Syntax
device mirror-isolation enable
[-c|--clusters] context-path [, context-path...]
[--also-enable-autounisolation]
[-h|--help]
[--verbose]
Arguments
Optional arguments
[-c|--clusters] context-path [, context-
path...]
Specifies the list of clusters on which to enable mirror isolation.
[--also-enable-autounisolation]
Enables auto-unisolation if specified.
[-h|--help]
Displays command line help.
[--verbose]
Provides more output during command execution. This may not have any
effect for some commands.
Description
A RAID 1 mirror leg built on a poorly performing storage volume can bring down the performance of the whole RAID 1 device and
increase I/O latencies to the applications using this device. Metro node prevents I/Os to these poorly performing mirror legs to
improve the RAID 1 performance. This behavior or feature is known as mirror isolation.
NOTE:
This command enables the mirror isolation feature and should only be used if RAID 1 performance improvement is
desired over redundancy.
Examples
Enable mirror isolation on all clusters:
VPlexcli:/> device mirror-isolation enable
Mirror isolation has been enabled on 'cluster-1'.
Mirror isolation has been enabled on 'cluster-2'.
Or
VPlexcli:/> device mirror-isolation enable -c *
Mirror isolation has been enabled on 'cluster-1'.
Mirror isolation has been enabled on 'cluster-2'.
120
Commands