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Forums Storage & Archiving LTO – MLogic / Yoyotta, error 2 problem

  • LTO – MLogic / Yoyotta, error 2 problem

  • Robert Lindqvist

    August 24, 2021 at 1:10 pm

    Hi all,
    a customer of mine have a MLogic M-Tape LTO-8 with TB3, together with Yoyotta SW. This is connected to a Mac Mini over Thunderbolt.
    He have had error 2 (power related problem) for quite some time. LTO stops writing files and tape often turn into read only, forcing him to format tape and start all over.

    PSU has been changed multiple times, TB3 connection has been swapped out, I am not sure but there might have been swapped LTO drive as well. Then all works for a while, but problem keeps coming back. He did purchase an power adaptor for the wall outlet, some “surge protection” that also has some sort of intrusive filtering built in. He has changed TB2 to TB3 adaptor, changed TB cable. Problem keeps coming back. It has been going on for well over a year.

    Any one out there with experiense of these LTO units? Any one with any idea?

     

    Best,

    Robert

     

  • Neil Sadwelkar

    August 28, 2021 at 5:16 am

    I have used Yoyotta for over 3 years, using it to backup over a Petabyte of data. And I haven’t encountered this error.

    I’m not using an mLogic drive. I have three drives. LTO6, LTO7 and LTO8. All three are connected via SAS to an external Thunderbolt PCIe box with an Atto SAS card inside it. I’m using three different Sonnet boxes, 2 different Atto SAS cards, and have run Yoyotta on a 15″ 2015 MBP, upgraded that to a 2017 15″ MBP, and now on an Intel Mac mini.

    So, the point is, Yoyotta has worked on a variety of configs and this error didn’t show up. And it looks like you too have changed things a bit but your error won’t go away. I think the common factor in your setup seems to be the mLogic LTO drive. Have you asked their support?

    Is it an option for you to borrow a machine that’s not mLogic, from someone else and check?

  • Martin Greenwood

    September 3, 2021 at 11:13 am

    Low level errors like this don’t give much information and can indicate a drive, tape or interface error. Often after encountering an error LTFS will set the tape into a write protected mode to prevent data corruption. The mTape drive will have an ATTO SAS card inside, ensure that it has the latest firmware and also ensure that the Mac has the latest ATTO driver. See our mTape support page for links to the ATTO drivers.

    https://yoyotta.com/help/mTape.html

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