topic dd error I/O data in Operating System - HP-UX

dd error I/O data

matteo_4 — Thu, 29 Jan 2004 03:32:02 GMT

Hi all,
i try to copy a tape but return to me
a message like this:

data i/o error read

23608+0 block in
23608+0 block out

Is the data valid to continue copy the tape?

Thank all

Re: dd error I/O data

Mark Grant — Thu, 29 Jan 2004 03:49:33 GMT

Looks to me like your copy is OK but the original looks a bit dodgy. I'd find some way to verify the copy if I were you and do more copies from that.

Re: dd error I/O data

Karthik S S — Thu, 29 Jan 2004 03:52:00 GMT

Are you trying to copy from the tape to disk or tape to tape?

Verify the source tape using,

dd if=/dev/rmtX of=/dev/null bs=1024k

If you again get the read error you can safely assume that tape is bad. Try with cleaning tape once.

-Karthik S S