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>

Creates a replication pair. Both the

 

-r/--remote < cont_vol_name>

primary and secondary volumes

 

-p/--priority <resync priority>

should be present before this

 

-i/--localhost <primary's IP address>

operation.

 

-m/--remotehost <rem host name>

For local volume copy, please enter

 

-d/--mode [sync ha]

remote host as “local”. All other

 

Example: replication in local volumes

parameters remain same. Default

 

create -l c0_v0 -r c1_v1 -p 50 -i 172.16.70.70 -d

resync priority is zero.

 

sync -m local syncreplica

Specify sync for –d/--mode option

 

 

to create a synchronous replication

 

Example: HA in remote volumes

pair; specify ha for –d/--mode

 

create -l c0_v0 -r c1_v1 -p 50 -i 172.16.70.70 -m

option to create an high-availability

 

172.16.70.102 –d ha syncreplica

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>

Updates the given parameters of

 

-p/--priority <resync priority>

the volpair in DDF and in module.

 

-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>

Displays the replication details as

 

For example: get –l c0_v0 syncreplica

available from DDF as well as

 

 

runtime.

list syncreplica

-c/--container <container name>

Lists available replication pairs in

 

For example: list –c c0 syncreplica

the given container.

delete syncreplica

-l/--local < cont_vol_name >

Deletes the given synchronous

 

-f/--force (optional)

replication pair. Note : Use --force

 

 

to clean up non-operational pair

 

 

locally.

split syncreplica

-l/--local <local-primary cont_vol_name>

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 <cont_vol_name>

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}

Initiates failover on the given

 

-l/--local <cont_vol_name>

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}

This will reinstate the initial

 

-l/--local <cont_vol_name>

primary to start fielding I/Os after a

 

For example: perform –t failback –l c0_v0

successful failback. Resync has to

 

syncreplica

be completed before activating the

 

 

failback.

30StorTrends® iTX Software CLI (Command Line Interface) (Version 2.7) User’s Guide

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American Megatrends MAN-STOR-ITX27-CLI manual Synchronous replication, For example update -l c0v0 -p 50 -m Syncreplica
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