Backup Exec 10.1 sometimes fails during verify

Windows 2003 Standard server with a Benchmark DLT tape drive that backs up a couple of 2003 Servers and a Netware 6.5 Server. Most of the time everything is fine but sometimes (4 times in the past 3 weeks), the job will fail during the verify of the first volume; the D volume of the machine Backup Exec is installed on. The specific message in the Backup Exec log is "Storage device reported an error on a request to read data from media.
Error reported: The semaphore timeout period had expired." All other BE jobs work fine.

Stops errors are generated in the application event viewer are event id 33152 (Adamm Mover Error: Read Failure!), 33152 (Adamm Mover Error: Read Not Ready Failure!), 57665 (Storeage device reported an error on a request to read data from media) and 34113 (Backup Exec Alert: Job Failed; the backup storeage device has failed). These 4 appear everytime the job fails.

Various media has been used and the DLT tape drive is regularly cleaned.  All updates have been applied to 2003; the build of Backup Exec 10.1 Rev 5629.

Let me know if I can provide additional information.

All replies appreciated.
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I think it might be your scsi card driver problem, see below link for more.

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This could be your problem.
DrewBryant1961Author Commented:

This is definitely a SCSI issue. Veritas referred me to a couple of knowledge base articles, 190598 ( and 240947 ( I went through most of the items in both listings, but would still receive failures on some jobs.

I changed the backup job within Backup Exec from tape to hard drive and the backup jobs works properly.

Thanks for the responses.
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