DDS 2 vs DDS 3

[Phillip Popp]

Hi all, running 10.2
I made a back up tape using ignite (make_recovery_tape)on a machine wiht a DDS2 tape drive. When I try to boot off the tape on another machine with a DDS3 tape drive, it gives me error messages.

check sum on volume header is incorrect

not an f back up volume: magic value is incorrect

did not find expected file marker.

I do not believe the machine I am doing a restore to had ignite on, but that should not matter should it?

Can I not do a back up of a machine with a DDS2 and restore to a machine with a DDS3 drive?

Please help, as I have users down.

Thanks Phil

[James R. Ferguson · Accepted solution]

Hi Phil:

Ignite recovery tapes consist of a bootable LIF area followed by a 'pax' archive.

Your error suggests a corrupt tape.

DDS2 tapes can be read by DDS3 drives.

DDS3 tape cannot be read by DDS2 devices.

Regards!

...JRF...

[Phillip Popp]

Thanks for answering my question of the DDS2 and DDS3 reading tapes, I wasn't sure. So you think I have bad tape? They have been laying around for at least 6 years.

Thanks,

Phil

[OldSchool]

For starters, I'd get some new dds-2 tapes.

10.20 and the Ignite versions that run on it are quite old (as I'm sure you know). I don't recall if the "make_tape_recovery" will complain if you give it a "rewind" device or not....

when you recreate the ignite tape, make sure that you either specify a non-rewind tape device (like /dev/rmt/2mn) or use the default (/dev/rmt/0mn)