Changing a Standard Volume to a Mirror Volume
Describes how to convert a standard volume to a mirror volume.
About this task
You can convert a standard volume to a mirror volume and set it up to mirror one of its associated mirror volumes using the Control System, the CLI, or the REST API.
Changing a Standard Volume to a Mirror Volume Using the Control System
Procedure
- Log in to the Control System and go to the Viewing Volume Details page for the standard volume.
-
Select Make Mirror Volumes from the
Select Action drop-down menu.
The Mirror Volume confirmation dialog displays.
-
Select the:
- Name of the source cluster where the associated mirror volume that the converted volume will mirror, exists.
- Name of the source volume that the converted volume will mirror, from the list of associated mirror volumes.
The standard volume, when converted, can only be a mirror of one of its associated mirror volumes. -
Click Save Changes for the changes to take effect.
NOTEIt might take some time (approximately 10 minutes or so) to convert a standard volume to a mirror volume. You need to wait until the operation is complete before performing other actions.
What to do next
After converting the standard volume to a mirror volume:
- Convert the source (mirror) volume to a standard (read/write) volume to prevent a deadlock and to allow writes to continue on the volume.
- Associate a mirroring schedule with this volume to ensure that data on this volume is in sync with the source volume.
Changing a Standard Volume to a Mirror Volume Using the CLI or the REST API
About this task
- CLI
To convert a standard volume to a mirror volume from the CLI, run the
maprcli volume modify
command with the-type
option value set tomirror
.maprcli volume modify -name <volume name> -type mirror
- REST
- To convert a standard volume to a mirror volume, send a request of type
POST. For example:
curl -k -X POST 'https://<hostname>:8443/rest/volume/modify?name=<volName>&type=mirror' --user mapr:mapr
For more information, see After converting the standard volume
to a mirror volume:
volume modify
. NOTE
It
might take some time (approximately 10 minutes or so) to convert a standard
volume to a mirror volume. You need to wait until the operation is complete
before performing other actions.- Convert the source (mirror) volume to a standard (read/write) volume to prevent a deadlock and to allow writes to continue on the volume.
- Associate a mirroring schedule with this volume to ensure that data on this volume is in sync with the source volume.