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DataProtector connecting to a Virtual Tape Library

Guy Holmes

I have downloaded and installed Dataprotector.

We can create and restore physical tapes without issue, but if we connect Dataprotector to a virtual tape drive or tape library it will not read a virtual tape.

The error is:

[Major] From: MMA@ec2amaz-5vorqji "drive1"  Time: 3/15/2023 1:58:59 AM [90:52]      Tape10:3:0:1:0C     Cannot read from device ([87] The parameter is incorrect. )

[Major] From: MMA@ec2amaz-5vorqji "drive1"  Time: 3/15/2023 1:58:59 AM [90:53]      Tape10:3:0:1:0C     Cannot seek to requested position (Details unknown.)

Can you assist?

Guy

  • 0  

    Hi Guy,

    There should not be any difference between a physical library and a VTL. If the VTL is giving issues then it is most likely related to settings on this device. Maybe the output of "devbra -dev" run on the same MA client (can you share that here?) can help? But better would be to run this failing action with debugs and provide those to support after elvating a case.

    Koen Verbelen
    Micro Focus (now OpenText) Customer Care Specialist
    If this answered your question, please mark it as "Suggest as Answer" or "Verify as Answer".
    If you found this post useful, please give it a "Like".

  • 0   in reply to Koen Verbelen

    Hi Guy,

    You should be able to log a support case for your trial version. If you have any trouble with the support portal or with elevating the case then let me know and I'll check who can assist with that.

    Koen Verbelen
    Micro Focus (now OpenText) Customer Care Specialist
    If this answered your question, please mark it as "Suggest as Answer" or "Verify as Answer".
    If you found this post useful, please give it a "Like".

  • Verified Answer

    +1

    Hi All, I work with OP and we have now solved this.

    Our virtual tapes used a 512KB block size and the virtual tapes were connected to the machine running Data Protector using an iscsi mount.
    The default settings for iscsi mounting in windows is to use a max block size of 64kb. Once we located the correct registry key and modified it we were able to restore the tapes without incident.

    The issue was not Data Protector at all.

  • 0   in reply to Chris Dinneen

    Hi Chris,

    Thank you so much for sharing this with everyone. 

    I'm assuming it is "MaxTransferLength" which you changed in the registry!? I did find a small note about it in our manuals about it: iSCSI drivers. If you could confirm then that may be helpful for others experiencing the same problem.

    You may want to flag your final answer as "Verified Answer" if possible.

    Thanks!

    Koen Verbelen
    Micro Focus (now OpenText) Customer Care Specialist
    If this answered your question, please mark it as "Suggest as Answer" or "Verify as Answer".
    If you found this post useful, please give it a "Like".

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