🚀 go-pugleaf

I would weigh in with the suggestion that if the rest of your 
SCSI chain is working, your cables probably are ok.

One issue I have had is the 2940 doesn't seem to like to slow 
down enough for the dat.  Going into its setup and slowing 
down the access to the DAT to 5MB per sec from the default 
10MB per sec can help some.
On any servers, I always use a separate SCSI card, (1510 or 
1522) for the slow stuff and the PCI SCSI for the hard drives.  
This will help to alleviate problems like this as well

I refuse to use the NTBackup utility after many failures, 
including one which cast me many hundreds of dollars of time.  
I have a few systems that have had similar problems.  I 
currently use Arcada Backup Exec and with the combinations 
noted above have none of the problems you report, after 
fighting them for months.  This product is a significant 
improvement over NTBackup

Good Luck
Matthew Sutton
Up & Running, 
Seattle, WA