Dell PowerVault MD3420 - Manual (Page 109)

data on the primary virtual disk as possible. The highest synchronization priority does, however, use more
system resources, which can reduce system performance.
This example shows how to use the command in a script file:
create remoteReplication primary=”Jan_04_Account”
secondary=”Jan_04_Account_B” remoteStorageArrayName=”Tabor”
remotePassword=”jdw2ga05” syncPriority=highest
writeMode=synchronous;
After you have created a remote replication, you can see the progress of data synchronization between
the primary virtual disk and the secondary virtual disk by running the show remoteReplication
synchronizationProgress command. This command shows the progress as a percentage of data
synchronization that has completed.
Changing Remote Replication (Legacy) Settings
The set remoteReplication command lets you change the property settings for a remote replicated
pair. Use this command to change these property settings:
• The virtual disk role (either primary or secondary)
• The synchronization priority
• The write order
• The write mode
You can apply the changes to one or several remote replicated pairs by using this command. Use the
primary virtual disk name to identify the remote replicated pairs for which you are changing the
properties.
This example shows how to use the set remoteReplication command:
c:\...\smX\client>smcli 123.45.67.88 123.45.67.89
-c “set remoteReplication localVirtualDisk [Jan_04_Account]
syncPriority=medium
writeOrder=notpreserved
writeMode=asynchronous;”
This example shows how to use the command in a script file:
set remoteReplication localVirtualDisk [Jan_04_Account]
syncPriority=medium
writeOrder=notpreserved
writeMode=asynchronous;
Suspending And Resuming A Replication Relationship
Use the suspend remoteReplication command to stop data transfer between a primary virtual disk
and a secondary virtual disk in a replication relationship without disabling the replication relationship.
Suspending a replication relationship lets you control when the data on the primary virtual disk and data
on the secondary virtual disk are synchronized. Suspending a replication relationship helps to reduce any
performance impact to the host application that might occur while any changed data on the primary
virtual disk is copied to the secondary virtual disk. Suspending a replication relationship is particularly
useful when you want to run a backup of the data on the secondary virtual disk.
When a replication relationship is in a suspended state, the primary virtual disk does not make any
attempt to contact the secondary virtual disk. Any writes to the primary virtual disk are persistently logged
in the replication repository virtual disks. After the replication relationship resumes, any data that is written
to the primary virtual disk is automatically written to the secondary virtual disk. Only the modified data
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