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How to "ufsdump" more than one Solaris 8 fils systems to tape - Linux / Unix Administration

In article <40F3F492.2000101myrealbox.com>, K7MEM <k7memmyrealbox.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...

  1. #1

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

    In article <40F3F492.2000101myrealbox.com>, K7MEM <k7memmyrealbox.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


    Michael Tosch Guest

  2. #2

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

    >
    > 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.
    Nic Guest

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