Synchronous replication – American Megatrends MAN-STOR-ITX27-CLI User Manual
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StorTrends® iTX Software CLI (Command Line Interface) (Version 2.7) User’s Guide
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Synchronous replication
These commands configure synchronous replication and High Availability using Windows DSM
(iTX 2.7v 2.x).
Command
Argument
Description
create syncreplica
–l/--local < cont_vol_name>
-r/--remote < cont_vol_name>
-p/--priority
-i/--localhost
-m/--remotehost
-d/--mode [sync | ha]
Example: replication in local volumes
create -l c0_v0 -r c1_v1 -p 50 -i 172.16.70.70 -d
sync -m local syncreplica
Example: HA in remote volumes
create -l c0_v0 -r c1_v1 -p 50 -i 172.16.70.70 -m
172.16.70.102 –d ha syncreplica
Creates a replication pair. Both the
primary and secondary volumes
should be present before this
operation.
For local volume copy, please enter
remote host as “local”. All other
parameters remain same. Default
resync priority is zero.
Specify sync for –d/--mode option
to create a synchronous replication
pair; specify ha for –d/--mode
option to create an high-availability
pair.
NOTE: management target name
for SR is the name of the virtual
target, as opposed to mtarget in
earlier versions (2.5/2.6).
update syncreplica
–l/--local < cont_vol_name>
-p/--priority
-m/--remotehost
-x/--xmlflag
For example: update -l c0_v0 -p 50 -m
172.16.70.102 -x syncreplica
Updates the given parameters of
the volpair in DDF and in module.
get syncreplica
-l/--local
For example: get –l c0_v0 syncreplica
Displays the replication details as
available from DDF as well as
runtime.
list syncreplica
-c/--container
For example: list –c c0 syncreplica
Lists available replication pairs in
the given container.
delete syncreplica
-l/--local < cont_vol_name >
-f/--force (optional)
Deletes the given synchronous
replication pair. Note : Use --force
to clean up non-operational pair
locally.
split syncreplica
-l/--local
Temporarily stops replication of
the replication pair. But at a later
time, the replication can be joined
to replicate from the place where it
stopped.
join syncreplica
-l/--local
Manually joins or resync the
replication on the given
consistency group that was split
earlier. Also, this command should
be used to initiate a failback
resync.
perform syncreplica
-t/--type {failover}
-l/--local
Initiates failover on the given
consistency group. This command
has to be given in the secondary
target. All further I/Os will be
fielded by the secondary from now
on.
perform syncreplica
-t/--type {failback}
-l/--local
For example: perform –t failback –l c0_v0
syncreplica
This will reinstate the initial
primary to start fielding I/Os after a
successful failback. Resync has to
be completed before activating the
failback.