About image expiration
To reclaim the storage space occupied by the expired images, you need to delete those images.
Following are the important points related to image expiration.
For a recovery point consisting of multiple images:
If you have expired a single image in an image group, then it does not lead to automatic expiration of remaining images. You must explicitly expire all images in an image group.
If you have expired a few images then the recovery point will be incomplete. Restore operation is not supported for incomplete recovery point.
If you have changed the expiration time for any of the images, then the expiration time for rest of the images must be changed. Otherwise, the expiration time for the images corresponding to recovery point gets skewed, leading to incomplete recovery point at some point in time.
Kubernetes recovery point may consist of multiple images. To perform restore operation, all the images corresponding to the recovery point must be imported. Otherwise, the recovery point is marked as incomplete and restore is not performed.
For more information, refer to the About importing backup images section in the NetBackup™ Administrator's Guide, Volume I