Roll back snapshots

Learn how to rollback a block device snapshot.

Note: Rolling back an image to a snapshot means overwriting the current version of the image with data from a snapshot. The time it takes to run a rollback increases with the size of the image. It is faster to clone from a snapshot than to rollback an image to a snapshot, and it is the preferred method of returning to a pre-existing state.

Prerequisites

  • A running IBM Storage Ceph cluster.

  • Root-level access to the node.

Procedure

  1. Specify the snap rollback option, the pool name, the image name and the snap name:

    Syntax 

    rbd --pool POOL_NAME snap rollback --snap SNAP_NAME IMAGE_NAME
rbd snap rollback POOL_NAME/IMAGE_NAME@SNAP_NAME

    Example 

    [root@rbd-client ~]# rbd --pool pool1 snap rollback --snap snap1 image1
[root@rbd-client ~]# rbd snap rollback pool1/image1@snap1