All,
Thanks to John Bury, Jerry Winegarden, Oisin McGuinness, Bryan Mills, Joe
Fletcher, Bryan Lavelle, Kai Grunau and Daniel Monjar for their replies.
Most of these people suggested I use the tcopy command which works just as
well as the dd command when there aren't block sizes to contend with. It was
suggested that i use the default block size (which I agree with) but
unfortunately I do not yet have that luxury, the backup script is maintained
by a third party (don't ask me why!!). I will attempt to talk to them to get
it changed so that we don't use block sizes.
Thanks again
Steve
-----Original Message-----
From: Copper, Steve [mailto:scopper_at_westernpower.co.uk]
Sent: 17 December 2001 14:54
To: Tru64 (E-mail)
Subject: Tape to Tape copy
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_________________________________________________________________
Managers,
I am wondering the best way to copy a backup of a filesystem from one tape
to another. The backup is done using a "tar" command with the block size set
to 1024.
I have been trying to use the "dd" command to copy tape1 to tape2 and then
trying to read tape2 back to no avail.
However a tar command with no block size set needs the dd command to have a
blocksize of 10240 in order for me to read the tar back on tape2.
Does anyone know of how I can get this to work with the backup taken with a
1024 block size both with using the tar command and also using the vdump
command? or indeed any other recommended way of copying a backup from one
tape to another?
Thanks in advance
Steve Copper
os=4.0G
tape=DLT
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Received on Mon Dec 17 2001 - 15:57:07 NZDT