Question about Certance Internal DAT 72 (cd72lwh-s) DAT Tape Drive

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Certance DAT 72 tape drive stopped communicating with PC

Internal Certance DAT 72 tape drive no longer seems to be "connected" to Veritas Backup Exec software. I can't even "inventory" a tape, eject a tape, etc. Was all fine the day before and ran a backup. It is an older drive, but didn't know if they would just disconnect and stop like this or not. I have also powered down the PC and back up. Still no joy.

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  • scott_mckinn Dec 31, 2009

    Another thing to check first: Veritas Devices tab > All Devices > Administrator > make sure not set to "Pause."



    Thanks for the detailed outline of suggestions in response thread. I found a local tech that I believe went through these very re-seating and driver reinstall steps from what I observed. But, in the end, the drive still would not engage from a software driven command. Yet, on the Veritas Devices tab, it correctly identified the tape that was in the drive, so it was reading in the reverse just fine. This made it seem like the drive must be functioning, so we didn't quite give up.



    Then, on the Veritas Devices tab, we just *happened* to right-click on the Administrator line under the All Devices listing and noticed it was somehow set to "Pause." We took Administrator off "Pause" and *everything* started working again.



    We all felt really dumb, but we (internal admin and *2* different techs) hadn't checked that before or during other diagnostics, so it's possible this had been the problem all along.



    So, I *highly* recommend that you check this first, then go to the more involved steps.

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We have had the same problems with HP drives and Veritas. In our case it was not the drive per se. While I am assuming that based on the date of your post that you have moved to another solution, however, I will provide for you what we did.

First shut all down, disconnect the tape drive from the scsi cable, then restart. Go into computer management and turn all your backup exec services from auto to manual. Now go to devices and do a rescan. Once this is done and you see no tape drive whatsoever in the devices shut down the server. Reconnect the scsi cable to the drive and restart.

Go back into computer management, back to devices and rescan for hardware changes. Do you see it? If so, good! Sometimes a re-seating of connectors will do that. On the other hand, it could also be a tape driver from Veritas that just doesn't work (my case), take the original driver cd that came with the unit and start that loading up. Can you see it now? Can you use windows backup to access the tape drive? Now go into services and start the services individually. Go into backup exec and see if you can read your tape. Go back to services and reset all services back to auto. If you ever have to reinstall/upgrade backup exec, think twice about using their drivers.

Posted on Dec 30, 2009

  • Jeffrey McMorran Dec 31, 2009

    Thank YOU for the information and that is great that it worked out. Have a great New Year!!

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