Re: Disk Upgrade and OS upgrade to 5.2 simultaneously

From: Robert Miller (rmiller_at_SMUD.ORG)
Date: 03/22/05

  • Next message: G V Raju: "Re: Disk Upgrade and OS upgrade to 5.2 simultaneously" 
    Date:         Tue, 22 Mar 2005 07:31:08 -0800
To: aix-l@Princeton.EDU

    You also may run into what I did with the 36G disks... make sure your system firmware is relatively current. Mine was not on a B80, and there was a problem (on the B80 at least, perhaps on other boxes) where if the boot record is over the 4G boundary, the system will not see it and won't be able to boot from the disk.

    However, updating the firmware solved the problem.

    So, if you see a message like "Invalid client program format" when you try to boot, it's probably a firmware issue... which is easily solved by a firmware update.

    --rm

    -----Original Message-----
    From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU]On Behalf Of
    Adams Kevin J
    Sent: Tuesday, March 22, 2005 7:18 AM
    To: aix-l@Princeton.EDU
    Subject: Re: Disk Upgrade and OS upgrade to 5.2 simultaneously

    If the two 36GB disks are in addition, and you use NIM, you could run NIMADM
    and simultaneously do an alt_disk_intall migration to 5.2.

    IF you don't use NIM, this won't be the easiest, but a normal
    alt_disk_install should work for you. Then boot off the new disks and
    migrate.

    Kevin Adams

    -----Original Message-----
    From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On Behalf Of
    Green, Simon
    Sent: Monday, March 21, 2005 2:44 AM
    To: aix-l@Princeton.EDU
    Subject: Re: [aix-l] Disk Upgrade and OS upgrade to 5.2 simultaneously

    Are the two 36GB disks going to be in *addition* to the existing ones, or
    *instead* of them?

    If they're going to replace them, then you really have no option but to do
    as Bob suggests.

    If they will be in addition, then you could install the new disks, then
    migrate the rootvg onto those disks. You'll probably need to use the "chvg
    -t" command: I expect your partition size is too small to accommodate 36GB
    disks without it.

    You'll need to do a bosboot, and update your bootlist. Take a look at the
    instructions for mirroring a rootvg: that will cover it.

    The advantage of doing this is that it saves you some downtime. If that's
    not a problem then doing a mksysb/restore is simpler.

    Once that's done, you can do your OS upgrade.

    There is no way of actually doing the disk and OS upgrade simultaneously.
    You might do them during the same session, but they have to be separate
    tasks. 

    --
Simon Green
Altria ITSC Europe s.a.r.l.
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> -----Original Message-----
> From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On
> Behalf Of G V Raju
> Sent: 21 March 2005 02:14
> To: aix-l@Princeton.EDU
> Subject: Disk Upgrade and OS upgrade to 5.2 simultaneously
>
>
> Hi All,
>
> We have one P170 Machine with 2*9 GB Hard disks mirrored.
> All the data is reside in one vg rootvg. The OS running is 5.1
>
> The activities we have are 1. to upgrade the disks to 2*36
> and 2. Upgrade
> the OS to 5.2.
>
> Please tell me the safest and easiest way of doing this activity.
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  • Next message: G V Raju: "Re: Disk Upgrade and OS upgrade to 5.2 simultaneously"

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