++ Once A Week Not All Data Is Stored ++


we've got a file backup running from mo-fr in NV on a Server 2012 R2 to LTO7 tape.
For a while the job running on friday does only store the size of about 173GB-178GB instead of 4.6TB-5.48TB, one job/selection list for all days.

How can I find out where the issue comes from?