What is your backup strategy ?
Source to tape, Full, and Incremental
What is the resource that does not delete ?
One on client-server backups
Is this a problem with all disk sets ?
Only local partition in the backup server.
Did the problem surface recently or is present from the start ?
After 20th of august
If you right click on the backup set and then click Show dependants -> does it show
dependancy on a backup set which has not yet expired ?
Some of back jobs are already expired.
If you expire the set 2 times, does it delete i.e. vanish from the screen ?
Are the media for the backup set present in the storage (Enable ShowHiddenMedia and check
backup set details, it shows the media used for that set. Does that exist in the storage?
Yes exit with same numbering with log file
How large is the disk storage? Can you run an inventory and catalog to check if that helps?
2.4TB local Partion
Does this article help to check which is your scenario ( DLM Article )