Re: Rootvg backup / restore

From: Green, Simon (Simon.Green_at_EU.ALTRIA.COM)
Date: 12/23/03

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    Date:         Tue, 23 Dec 2003 19:31:16 +0100
To: aix-l@Princeton.EDU

    Use mksysb for your rootvg, savevg for other volume groups. It doesn't
    offer anything over a mksysb, so there's no point doing both for rootvg.
    (For large databases, you'll probably want to use TSM, Legato or some other
    comprehensive backup/recovery tool; still use mksysb for the rootvg,
    though.)

    Ideally, you'd have your rootvg mirrored but I know that isn't always
    possible.
    If you have a failure of a rootvg disk then once the disk has been replaced
    it should simply be a matter of loading in the mksysb tape and booting the
    system from the tape. It'll prompt for a few basic things, then
    automatically re-install.

    If you're using different hardware - a spare server, or perhaps a different
    model of disk to replace the old one - you should do a "clone", where you
    boot from the AIX Installation CD first, then tell the system to restore
    from the mksysb. That way any extra drivers will be installed
    automatically.

    Simon Green
    Altria ITSC Europe Ltd

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    > -----Original Message-----
    > From: Hambleton, John S. [mailto:jhamblet@NMU.EDU]
    > Sent: 23 December 2003 18:11
    > To: aix-l@Princeton.EDU
    > Subject: Rootvg backup / restore
    > Importance: High
    >
    >
    > Hi Folks:
    >
    > Up front, I do not have extensive AIX experience.
    > I am interested in how others do backup and disaster
    > recovery of the rootvg volume group. What if a physical
    > volume in my rootvg failed? How should I have been backing
    > up and how to restore? I know about "mksysb" and
    > have been making those. Is "savevg" indicated as
    > well? Have not had such a disaster yet, just preparing
    > for the possibility.

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