dd error I/O data

[matteo_4]

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

[Mark Grant]

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.

[Karthik S S]

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