We are experiencing problems with the following error - v-79-57344-34028, where are daily backup routine intermittently fails and the tape cleaning light comes on.
On following the above error code we have purchased a new SCSI card, SCSI cable and even replaced the tape drive.
We are also using a different tape each day as part of our backup cycle so we have also eliminated a media problem.
We have also seen an entry in the system event log for ID 7 if this helps.