File backup in rawdisk

[MILAN MURALIDHARAN_1]

How could i backup a file in a rawdisk?
What is the commands used for this and the options available?

Thanks
Milan

[A. Clay Stephenson]

Hi:

It's very simple:

dd if=/dev/vg01/rlvol1 of=/xxx/myfile.dat

where if (input file - raw device) and of (output file)

Man dd for details.

[A. Clay Stephenson]

By the way,

If you are backing up to a tape device, it's the same command:

dd if=/dev/vg01/rlvol1 of=/dev/rmt/1m bs=64

in this case you should specify a block size to improve tape driver performance.

Clay

[A. Clay Stephenson]

By the way,

If you are backing up to a tape device, it's the same command:

dd if=/dev/vg01/rlvol1 of=/dev/rmt/1m bs=64k
in this case you should specify a block size to improve tape driver performance (64k chunks)

Clay