We are using DPM 2007 and placed 4 brand new LTO-4 tapes in our Qualstar library and 3 out of the 4 tapes says "EXPIRED". The previous week it worked and we could recover from the tapes but this week it says expried and we cannot recover because it does not show a tape backup was done.
All tapes last week said offsite ready and this week there is no green checkbox.
The tape that was NOT expired had all the servers backed up except the main file server. The other 3 tapes says expired and it is the data from the main file server.
All protection groups are set to run at Sunday 1 am. The setting is to have 1 recovery point every week for the last 4 weeks. The retention range is 4 weeks. Number of backup copies is 1.