> Late last week I had my first run at Bacula on a Linux server with
> self-contained storage and an LT04 16 slot tape library (a Dell PV-124T)
> connected by a SAS controller. I ran 2.4.4-1 as it was the default under 
> Debian
> stable. After a few dry runs and problems I succeeded in backing up just over
> 2TB of data to 3 tapes (just over 2 tapes) at around 70MB/s. Retrieves went
> fine.
>
> I've now upgraded to 5.0.2-1 using Debian backports so that we can run
> close to the latest version. I'm using much the same configuration, but
> both the Storage service and btape hang after trying to access the
> drive.
>
> It looks like I've still got access to the library, but somehow I've lost
> connection to the actual tape drive.
>
> As the server and tape drive are in a data centre I'd be glad for advice on
> what to do next!
>
> Regards
> Rory
>
>
> # btape -pv /dev/nst0
>
>    Tape block granularity is 1024 bytes.
>    btape: butil.c:284 Using device: "/dev/nst0" for writing.
>    18-Jul 22:27 btape JobId 0: 3301 Issuing autochanger "loaded? drive 0" 
> command.
>    18-Jul 22:27 btape JobId 0: 3302 Autochanger "loaded? drive 0", result is 
> Slot 5.
>
>    18-Jul 22:32 btape: Fatal Error at device.c:298 because:
>    dev open failed: dev.c:491 Unable to open device "LTO4-Drive1" 
> (/dev/nst0): ERR=Input/output error
>
>    18-Jul 22:32 btape JobId 0: Fatal error: butil.c:193 Cannot open 
> "LTO4-Drive1" (/dev/nst0)
>
> # mtx -f /dev/sg4 status
>
>    Storage Changer /dev/sg4:1 Drives, 16 Slots ( 0 Import/Export )
>    Data Transfer Element 0:Full (Storage Element 5 Loaded)
>          Storage Element 1:Full
>          Storage Element 2:Full :VolumeTag=000006L4
>          Storage Element 3:Full
>          Storage Element 4:Full
>          Storage Element 5:Empty
>          Storage Element 6:Full
>          Storage Element 7:Full
>          Storage Element 8:Full
>          Storage Element 9:Full
>          Storage Element 10:Full
>          Storage Element 11:Full
>          Storage Element 12:Full
>          Storage Element 13:Full
>          Storage Element 14:Full
>          Storage Element 15:Full :VolumeTag=CLNU00L1
>          Storage Element 16:Full
>
> # mt -f /dev/nst0 status
>
>    /dev/nst0: Input/output error
>

Check if bacula-sd is still running. If so the mt command is expected to fail.

John

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