we have a job that does an incremental forever backup of a fileserver, this fileserver now has 2 disks, but at the beginning it has only one disk, so the first full backup occupy on the repository 15 TB and then another disk has beed added to the backup so the first incremental backup occupy 38 TB on the repository, as shown below:

the job ran this night but it fails with " Failed to write data to the file x to the repository" , i think that refers to a new full backup that has been created (3,7 TB), i supposed that when the first backup had expired, the first incremental backup injects into the full, occupying the sum of the two.
But it seems that to inject the incremental to the full new file has been created.
the repository has 57 TB of capacity.
Now to resolve the issue the only way I see is delete all files from these job and do a new full with already the two disks, what would you suggest? thanks