Further tape problems!

[wizzer]

Having upgraded to a new server, i have a DDS3 tape which contains a CPIO backup of my old server. The drive in my old server is a HP Storageworks DAT40i drive, and in my new server i have a Quantum DAT72 Drive. When i try to use cpio on the new server to retrieve files from the tape, i get an error telling me that the tape is not formatted.

I understand that the implementation of cpio is slightly different on OS6 to OS5, but i don't know if the problem is likely to be related to that, or that the tape drives are incompatible.

Any suggestions would be gratefully recieved!

James

 

[motoslide]

You can determine if the problem is CPIO or hardware by trying to read the old tape in the new drive with a DD command:

# dd if=/dev/rStp0 of=/tmp/tapefile bs=512 count=1000000

That will grab the first 512mb of the tape. You may need to try different values for the "bs=512" option.

There are also different binaries for several utilities in /u95/bin. You might try that version of cpio as well.

My guess is you have a hardware compatibility issue between the drives, though.

"Proof that there is intelligent life in Oregon. Well, Life anyway.

 

[StamaMan]

Try uninstalling the DAT tape drive and then re-installing the drive. We are currently using DDS3 & 4 DAT Drives. When we installed them we selected DAT Tape from the instalation menu.(As it is a DAT Tape afterall). We have now selected the Generic menu from the selection. Hope this helps.

 

[wizzer]

Thanks for your replies, the server's quite happy up and running now, and reading and writing from the tape. Reading from the old tapes (which it still won't do) isn't a problem, and it's ok when i write to one of the old tapes i can then read it too!

James