Re: [Bug-tar] tar: unable to read LTO4 tapes on a LTO5 drive using tar

[peter.chiu]

Thanks for the responses.

The LTO5 tape drive is a brand new one.

Though it is possible for a new drive to be faulty, but we
did test writing data onto a new LTO4 and reading it back.
That works okay.  So unlikely a drive fault.

As to the format, not sure. I was hoping the ddrescue can give some clues,
but apparently not.

Peter


-----Original Message-----
From: Antonio Diaz Diaz [mailto:address@hidden 
Sent: 15 June 2012 19:39
To: Chiu, Peter (STFC,RAL,RALSP)
Cc: address@hidden
Subject: Re: [Bug-tar] tar: unable to read LTO4 tapes on a LTO5 drive using tar

address@hidden wrote:
> # Rescue Logfile. Created by GNU ddrescue version 1.16 # Command line: 
> ddrescue /dev/st0 /tmp/lto/tar logfile # current_pos  current_status
> 0x11E6E9E8000     /
> #      pos        size  status
> 0x00000000  0x0416D600  -
> 0x0416D600  0x007E4600  /
> 0x04951C00  0x0381BC00  -
> 0x0816D800  0x027E4600  /
> ...

It seems ddrescue can't read anything, but the tape is giving errors at an 
astounding speed. I guess it is a format or drive problem, not a media problem.

Mark: ddrescue does work for tapes.


Regards,
Antonio.
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