Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide

To be able to remove an SRDF group:

• Both sides of the SRDF configuration must be defined and reachable
• The group must be empty.
• At least one physical connection between the local and remote array must exist.
• In SRDF/Metro configurations:
  • You cannot remove a Witness group if an SRDF/Metro group is currently using that Witness group for protection.
  • You can remove a Witness group if it is protecting an SRDF/Metro configuration(s) and there is another Witness (either physical (another array with witness groups to both sides of the SRDF/Metro configuration) or virtual (a vWitness that is enabled and visible to both sides of the SRDF/Metro configuration)) available to provide the protection. The Witness group can be removed and the new Witness array starts protecting the SRDF/Metro group(s).

Syntax

Use the symrdf deletepair command to remove all devices from the group.

Use the symrdf removegrp command to remove an SRDF group.

symrdf removegrp -sid SID
     -rdfg GrpNum | -label GrpLabel
     -noprompt
     -i Interval
     -c Count 
     -star
     -symforce
     -witness

Options

-remote -rdfgGrpNum -label GrpLabel

The SRDF group number on the remote array.

-noprompt

Prompts are not displayed after the command is entered.

-i Interval

The interval, in seconds, between attempts to acquire an exclusive lock on the array host database or on the local and/or remote arrays.

-c Count

The number (count) of times to attempt to acquire an exclusive lock on the array host database, or on the local and/or remote arrays.

-star

The action is targeted at an RDF group in STAR mode.

-symforce

Requests the array force the operation to be executed when normally it would be rejected.

NOTE:When used with removegrp, this option removes one side of a dynamic SRDF group if the other side is not defined or is not accessible. Do not use this option except in emergencies.

-witness

The SRDF group is a Witness group.

Example - Remove an SRDF group

In the following example:

• The symrdf deletepair command deletes SRDF dynamic pairs defined in a device file dynpairsfile. As all device pairs in the SRDF group are listed in the device file, the group will be emptied.
• The symrdf removegrp command removes the local and remote dynamic SRDF groups:

symrdf deletepair -sid 80 -rdfg 4 -file dynpairsfile

symrdf removegrp -sid 80 -label dyngrp4