Viewing Mirror Status

List mirror volumes and their status using the Control System and the CLI.

You can see a list of all mirror volumes and their current status in the Mirror Volumes view (in the Control System, select Mirror Volumes from the drop-down menu in the Volumes page under Data > Volumes) or using the volume list command. Use the volume mirror status command to view the details of the mirroring operation that is in progress. The volume mirror status command helps in troubleshooting the mirroring operation. For more information on trouble shooting mirroring, see the support article titled Monitor and Understand Volume Mirroring in HPE Ezmeral Data Fabric.

Note: The Volumes page is under the Volumes menu in the Kubernetes version of the Control System.

To use the volume list command to explicitly list mirror volumes, you must define a filter. For example:

maprcli volume list -filter [n==<mirror name>] -columns \
         n,p,mirror-percent-complete,mrt -cluster <target cluster>

Mirrors and Performance

Completion time for a mirroring operation is affected by the available network bandwidth, and the amount of data to transmit. For best performance, set the mirroring schedule according to the anticipated rate of data changes, and the available bandwidth for mirroring.