Synchronous Replication - American Megatrends StorTrends User’s guide User Manual

Synchronous replication

These commands configure synchronous replication and High Availability using Windows DSM
(iTX 2.7v 2.x).
Command Argument
create syncreplica –l/--local < cont_vol_name>
-r/--remote < cont_vol_name>
-p/--priority <resync priority>
-i/--localhost <primary's IP address>
-m/--remotehost <rem host name>
-d/--mode [sync | ha]
Example: replication in local volumes
sync -m local syncreplica
Example: HA in remote volumes
172.16.70.102 –d ha syncreplica
update syncreplica –l/--local < cont_vol_name>
-p/--priority <resync priority>
-m/--remotehost <rem host name>
-x/--xmlflag <xml flag>
For example: update -l c0_v0 -p 50 -m
172.16.70.102 -x syncreplica
get syncreplica -l/--local <local-primary cont_vol_name>
For example: get –l c0_v0 syncreplica
list syncreplica -c/--container <container name>
For example: list –c c0 syncreplica
delete syncreplica -l/--local < cont_vol_name >
-f/--force (optional)
split syncreplica -l/--local <local-primary cont_vol_name>
join syncreplica -l/--local <cont_vol_name>
perform syncreplica -t/--type {failover}
-l/--local <cont_vol_name>
perform syncreplica -t/--type {failback}
-l/--local <cont_vol_name>
For example: perform –t failback –l c0_v0
syncreplica
StorTrends® iTX Software CLI (Command Line Interface) (Version 2.7) User's Guide
30
create -l c0_v0 -r c1_v1 -p 50 -i 172.16.70.70 -d
create -l c0_v0 -r c1_v1 -p 50 -i 172.16.70.70 -m
Description
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).
Updates the given parameters of
the volpair in DDF and in module.
Displays the replication details as
available from DDF as well as
runtime.
Lists available replication pairs in
the given container.
Deletes the given synchronous
replication pair. Note : Use --force
to clean up non-operational pair
locally.
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.
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.
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.
This will reinstate the initial
primary to start fielding I/Os after a
successful failback. Resync has to
be completed before activating the
failback.