How to "ufsdump" more than one Solaris 8 fils systems to tape

[Michael Tosch]

In article <40F3F492.2000101@myrealbox.com>, K7MEM <k7mem@myrealbox.com> writes:
....

>

> > mt -f /dev/rmt/0m rewind

....

is "doppelt gemoppelt", as we say in Germany.

mt -f /dev/rmt/0mn rewind

will only one time rewind.

Of course most tapes reply immediate "ready" at the 2nd rewind
command issued by the /dev/rmt/0m driver.

Another useful command is
mt -f /dev/rmt/0mn status
and some tapes can even correctly handle
mt -f /dev/rmt/0mn bsf 1
Can save you a "rewind" and "fsf" in some cases.

--
Michael Tosch
IT Specialist
HP Managed Services Germany
Phone: +49 2407 575 313
Mail: michael.tosch:hp.com

[Nic]

>

> To then recover these dumps with the "ufsrestore" command you would
> again use the "mt" command. This time to position yourself to the
> correct position on the tape. For example, to recover the data from
> the "/local" partition, /dev/rdsk/c0t1d0s5, you might use the following
> commands:
>

> > cd /tmp_local
> > mt -f /dev/rmt/0m rewind
> > mt -f /dev/rmt/0mn fsr 4
> > ufsrestore xf /dev/rmt/0mn

>
> As with everything, read the man page for "mt", "ufsdump", "ufsrestore",
> and "installboot".

By the way, there is no need to use mt to move to the position on
tape, ufsrestore has the s option that will jump to the one you want.
ufsrestore xfs /dev/rmt/0 3
will restore the 3rd image on tape.
Nic.