Copy DLT to DLT

[augusto cossa]

Good day,

Is there anyone who knows if it's possible to copy from one DLT to ohter? My I use rcp -p host1:path host2:path?

Help on it.

Thanks,

Augusto

[Lasse Knudsen]

No, you can't do it that way.

I would suggest something like:

On host1:

dd if=/dev/rmt/ ibs=20b obs=1b | remsh host2 dd of=/dev/rmt/ ibs=1b obs=20b

You need to have your hosts.equiv .rhosts file set up properly in order to use remsh.

The block size (20b) is good for "normal" tar and cpio archives but with different formats you might have to use another block size.

[Carlos Fernandez Riera]

Tar, cpio , dd ... use differents blocks size so you must use correct block size for each command.

By default tar uses 10K ( 20b)
By default cpio uses 512 bytes (1b) unless you had used -B option ( 5k)

If you are trying to duplicate a make_recovery tape first block on tape is 2k.

Blocks must be the same in each tape so:

tar:
dd if=/dev/rmt/ bs=10k | remsh host2 dd of=/dev/rmt/ bs=10k

and so on for each block in tape.

Validate that duplicate tape is readable.

[John Palmer]

Augusto,

dd is the utility that you need to use but you must ensure that the blocksize used (bs= argument) is greater than any block size that exists on the tape. If you don't then data will be lost .

You also need to cater for the fact that there may be more than one file on the DLT tape.

Regards,
John

[Rick Garland]

Use the dd command. This will pick up all tracks and transfer them the new DLT tape

[Tom Danzig]

If you are refering to tapes created with Omniback, you can use the omnicp command to copy DLT tapes.

[박수정]

HI!

Use This Command

# dd if=/dev/rmt/0mn bs=1024 | remsh remote_hostname dd of=/dev/rmt/0mn bs=1024

Edit file on remote server

# vi $HOME/.rhost

198.254.xxx.xxx user_name

# vi /etc/in

shell stream tcp nowait root -
/usr/lbin/remshd remshdetd.conf

# inetd -c