Backup exec updating catalogs

We now have a problem for a unknown reason our exchange server now doesn't want to backup to disk, it should take about an hour and a half but now takes its whole time window trying to 'update catalogs' but it doesn't seem to be doing anything, at the moment it seems to be taking over 15 hours, and its not finishing. The job log reports the following: (Figure 1) Cause: This issue occurs if the Full Backup set to be used by the incremental backup job has been overwritten.This was a problem for 11d in which they released a hotfix but this is now 12.5, any ideas???? Resolution: Ensure that the full backup set as well as the corresponding incremental backup set does not get overwritten.We run a handful of incremental backups to disks each night and a full weekly every friday night, after each backup runs it then runs a disk to tape.So in the morning all our severs are nicely backed up to tape : D GREAT! Document ID: 295620 E-Mail this document to a colleague A duplicate backup job of a Granular Restore Technology (GRT) enabled Exchange 2007 incremental backup set from disk to tape fails with the error "Unable to acquire device for the specified pool and media" Exact Error Message V-79-57344-33029 - Error - Mount failed. V-79-57344-33029 - Unable to acquire device for the specified pool and media Details: A duplicate backup job from a backup-to-disk (B2D) folder to tape for a GRT enabled Exchange 2007 incremental backup set may fail with the above error.

in the backup exec 2012 environment what are the catalogs and the inventories ?Please refer to the following document Exact Error Message V-79-57344-33029 - Error - Mount failed. V-79-57344-33029 - Unable to acquire device for the specified pool and media A duplicate backup job of a Granular Restore Technology (GRT) enabled Exchange 2007 incremental backup set from disk to tape fails with the error "Unable to acquire device for the specified pool and media" per jonhicks Have you seen Our Exchange 2007 Differntial job claimed to have finished previously in less than an hour, and backed up 50GB.Backup Exec will NOT delete old data sets, even if they are expired, if more recent full backups have not been successful nor will it let you overwrite those media sets.To force the clean-up of old, expired data you need to do the following (all of this is predicated on Backup Exec 2012, older versions may operate differently).

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