CLI Guide

Table Of Contents
Continue to disable mirror isolation on cluster-1,cluster-2? (Yes/No) Yes
Mirror isolation has been disabled on 'cluster-1'.
Mirror isolation has been disabled on 'cluster-2'.
Disable mirror isolation on all clusters without being prompted to confirm:
VPlexcli:/> device mirror-isolation disable -f
WARNING: Disabling the mirror isolation feature will prevent metro node from improving
the performance of a RAID-1 device containing a poorly performing mirror leg. This
command should be only used if redundancy is desired over RAID-1 performance improvement.
Mirror isolation has been disabled on 'cluster-1'.
Mirror isolation has been disabled on 'cluster-2'.
Disable mirror isolation on one cluster:
VPlexcli:/> device mirror-isolation disable -c cluster-1
Disabling the mirror isolation feature will prevent metro node from improving the
performance of a RAID-1 device containing a poorly performing mirror leg. This command
should be only used if redundancy is desired over RAID-1 performance improvement.
Continue to disable mirror isolation on cluster-1 (Yes/No) Yes
Mirror isolation has been disabled on 'cluster-1'.
Attempt to disable mirror-isolation on the clusters when it is already disabled:
VPlexcli:/> device mirror-isolation disable -f
WARNING: Disabling the mirror isolation feature will prevent metro node from improving
the performance of a RAID-1 device containing a poorly performing mirror leg. This
command should be only used if redundancy is desired over RAID-1 performance improvement.
Mirror isolation has been disabled on 'cluster-1'.
Mirror isolation has been disabled on 'cluster-2'.
Attempt to disable mirror-isolation on a system where mirror-isolation is not supported:
VPlexcli:/> device mirror-isolation disable -f
WARNING: Disabling the mirror isolation feature will prevent metro node from improving
the performance of a RAID-1 device containing a poorly performing mirror
leg. This command should be only used if redundancy is desired over RAID-1
performance improvement.
device mirror-isolation disable: Evaluation of <<device mirror-isolation disable -f>>
failed.
cause: Could not disable mirror isolation on 'cluster-1'.
cause: Firmware command error.
cause: no such command.
Attempt to disable mirror-isolation on both clusters and succeeded on cluster 1, but failed on cluster 2 because the feature is
not supported:
VPlexcli:/> device mirror-isolation disable
Disabling the mirror isolation feature will prevent metro node from improving the
performance of a RAID-1 device containing a poorly performing mirror leg. This command
should be only used if redundancy is desired over RAID-1 performance improvement.
Continue to disable mirror isolation on cluster-1,cluster-2 (Yes/No) Yes
Mirror isolation has been disabled on 'cluster-1'.
device mirror-isolation disable: Evaluation of <<device mirror-isolation disable>>
failed.
cause: Could not disable mirror isolation on 'cluster-2'.
cause: Firmware command error.
cause: invalid subcommand.
See also
device mirror-isolation auto-unisolation disable
device mirror-isolation auto-unisolation enable
device mirror-isolation enable
device mirror-isolation show
Dell EMC Administration Guide for metro node
Commands
119