- Notes, cautions, and warnings
- Getting started
- System concepts
- Storage environment
- Virtual storage
- Linear storage
- Disk groups
- RAID levels
- ADAPT
- Disk group utilities
- SSDs
- Spares
- Pools
- Changing pool settings
- Volumes and volume groups
- Volume cache options
- Overcommitting volumes
- About automated tiered storage
- Initiators, hosts, and host groups
- CHAP
- Host ports
- Attaching volumes to hosts
- Operating with a single controller
- Snapshots
- Copying volumes or snapshots
- Reconstruction
- Quick rebuild
- Updating firmware
- Managed logs
- LDAP
- DNS settings
- Peer connections
- Replication
- Full disk encryption
- Rescanning disks
- Clearing disk metadata
- Data protection during failover to a single controller
- SupportAssist
- About APEX AIOps Infrastructure Observability
- Event history
- Audit logs
- System metrics
- Dashboard
- Provisioning
- Working with volumes
- Volumes table
- Data protection table
- Creating volumes
- Modifying volumes
- Deleting volumes and snapshots
- Attaching volumes to hosts
- Detaching volumes from hosts
- Expanding volumes
- Rolling back virtual volumes
- Creating snapshots
- Resetting snapshots
- Copying volumes or snapshots
- Aborting a volume copy
- Add data protection
- Creating a replication set
- Modifying a replication set
- Deleting a replication set
- Initiating or scheduling a replication
- Suspending a replication
- Aborting a replication set
- Resuming a replication
- Managing replication schedules
- Working with hosts
- Working with volumes
- Settings
- Maintenance
- Other management interfaces
- Administering a log-collection system
- Settings changed by restoring defaults
- System configuration limits
- Best practices
- Glossary of terms
Dell PowerVault ME5 Series Administrator's Guide
Initiating or scheduling a replication
After you have created a replication set, you can copy the selected volume on the primary system to the secondary system by initiating replication (Provisioning > Volumes). Select the slide-over to access the Replications panel, and then click Start Replication.
- If a replication is not in progress, the local system begins replicating the contents of the replication set volume to the remote system and a progress bar indicates the status of the replication set.
- If a replication set is already in progress, then the outcome of this replication request depends on the Queue Policy setting specified. For more information on setting the queue policy, see Queuing replications.
The first time that you initiate replication, a full copy of the allocated pages for the volume is made to the secondary system. Thereafter, the primary system only sends the contents that have changed since the last replication.
You can manually initiate replication after you create a replication set. You can create a scheduled task to automatically initiate replication from the Data Protection Configuration wizard when you create the replication set. You can initiate replications and manage replication schedules only from the primary system of a replication set.
NOTE: When creating a remote replication, you are prompted to create a replication schedule. This is the only time where you can schedule a replication set using the
PowerVault Manager. If you do not set a replication schedule when prompted, you will be unable to do so in the
PowerVault Manager after the replication set is created. For information about creating a schedule using the create schedule CLI command, see the CLI Reference Guide.
NOTE: If you change the time zone of the secondary system in a replication set whose primary and secondary systems are in different time zones, you must reset the secondary system to enable management interfaces to show proper time values for replication operations, such as the start, end and estimated completion replication times. To reset the time values, log into one of the controllers on the secondary system, and restart only one of Storage Controllers using either the
restart sc a or
restart sc b command.
If a replication operation encounters a problem, the system suspends the replication set. The replication operation will attempt to resume if it has been more than 10 minutes since the replication set was suspended. If the operation has not succeeded after six attempts using the 10-minute interval, it will switch to trying to resume if it has been over an hour and the peer connection is healthy.
NOTE:Host port evaluation is done at the start or resumption of each replication operation.
- At most, two ports will be used.
- Ports with optimized paths will be used first. Ports with unoptimized paths will be used if no optimized path exists. If only one port has an optimized path, then only that port will be used.
- Ports with both paths optimized will share the replication traffic between the two ports. The amount of replication traffic each port moves is dependent upon other operations occurring on each port.
- The replication will not use another available port until all currently used ports become unavailable.
NOTE:If a single host port loses connectivity, event 112 will be logged. Because a peer connection is likely to be associated with multiple host ports, the loss of a single host port may degrade performance but usually will not cause the peer connection to be inaccessible.
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