CLI Guide

[-c|--cluster] cluster
Arguments
Required arguments
[-n|--name]
consistency-group name
* Name of the new consistency group. Must be unique within a cluster. Name conflicts across s
can be resolved by changing the name later using the set name command.
[-c|--cluster]
cluster
Context path of the at which to create the consistency group. If the current context is a cluster
or below, that is the default. Otherwise, this argument is required.
* - argument is positional.
Description
Creates and names an empty consistency group.
A maximum of 1024 consistency groups can be configured.
Each consistency group can contain up to 1000 .
All consistency groups have configurable properties that determine I/O behavior, including:
● cache mode - synchronous
● visibility - determines which s know about a consistency group. Default is only to the where the consistency group was
created. Modified using the set command.
● storage-at-clusters - tells metro node at which the physical storage associated with a consistency group is located.
Modified using the set command.
● local-read-override - whether the volumes in this consistency group use the local read override optimization. Default
is true. Modified using the set command.
● detach-rule - determines the winning when there is an inter- link outage. Modified using the consistency-
group set-detach-rule active-cluster-wins, consistency-group set-detach-rule no-automatic-
winner, and consistency-group set-detach-rule winner commands.
● auto-resume-at-loser - whether the loser automatically resumes I/O when the inter- link is repaired after a failure.
Default is true. Modified using the set command in /clusters/cluster-n/consistency-groups/consistency-
group-name/advanced context.
● virtual-volumes - member volumes of the consistency group. Modified using the consistency-group add-
virtual-volumes and consistency-group remove-virtual-volumes commands.
Refer to the Dell EMC Administration Guide for more information about the consistency group properties.
Examples
In the following example,
● The ls /clusters/*/consistency-groups/ command displays the names of all consistency groups in both s.
● The consistency-group create command creates an empty synchronous consistency group TestCG.
● The ls command in consistency group context displays the new name. The ls TestCG command displays details about
the new consistency group.
NOTE: See the Dell EMC Administration Guide for metro node for a description of the fields in the following examples.
VPlexcli:/> ls /clusters/*/consistency-groups/
/clusters/cluster-1/consistency-groups:
test10 test11 test12 test13 test14
test15 test16 test5 test6 test7 test8
test9 vs_RAM_c1wins vs_RAM_c2wins vs_oban005 vs_sun190
/clusters/cluster-2/consistency-groups:
.
.
Commands
101