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  • 1.  Upgrade from 5.2 to 5.3

    Posted Thu May 17, 2007 03:39 AM

    Originally posted by: SystemAdmin



    So... I'll be upgrading a p630 machine form AIX 5.2 (5200-03; yes I know it's old, don't ask!) to AIX 5.3.

    Does anyone have any words of wisdom for me? Has anyone done this and failed miserably?

    Anything that I should watch out for?

    Thanks!


  • 2.  Re: Upgrade from 5.2 to 5.3

    Posted Thu May 17, 2007 04:05 AM

    Originally posted by: SystemAdmin


    I forgot to mention that this is an LPAR with two partitions - one threated as test, the other as production.

    My uneasiness comes from the fact that I'll have to run with one partition at 5.3 and the other at 5.2 for a few weeks until the production side can take the downtime.


  • 3.  Re: Upgrade from 5.2 to 5.3

    Posted Thu May 17, 2007 10:55 AM

    Originally posted by: ccompton


    I have been migrating my p670 LPARs from AIX 5.2 to AIX 5.3 over the past month or so. There have really been no problems, either with the migration or the applications. I first used the CDs, but then started using the NIM Alt Disk Migration which worked like a charm (see procedure in the newest NIM A-Z redbook). The alt-disk method gives you an easy back-out if you do have problems; simply re-boot off the disk with the 5.2 OS on it. You can also do most of the migration with the current system running to minimize downtime.

    Good-luck.


  • 4.  Re: Upgrade from 5.2 to 5.3

    Posted Thu May 17, 2007 02:53 PM

    Originally posted by: SystemAdmin


    we recently migrated from 5.1 to 5.3 using CDs. Found out the hard way that the 5.1 had to be updated to the latest firmware first before upgrade. Otherwise, the upgrade seems to work.. the system reboots, but hangs. We had to back out using a tape backup, which also got botched up on one of the systems.

    hope this helps.


  • 5.  Re: Upgrade from 5.2 to 5.3

    Posted Thu May 17, 2007 09:14 PM

    Originally posted by: SystemAdmin


    Don't go with the CD upgrade, go with the alt_boot method, it's the best way to roll back if the upgrade fails, I have used it in 20-30 5.2-5.3 upgrades and it pretty solid.

    Cheers....Steve


  • 6.  Re: Upgrade from 5.2 to 5.3

    Posted Wed April 02, 2008 02:46 PM

    Originally posted by: abyalex


    Hi,

    I need to migrate around 600 serversfrom 5.2 to 5.3
    Colud you some tips about that

    regards,


  • 7.  Re: Upgrade from 5.2 to 5.3

    Posted Wed April 02, 2008 02:53 PM

    Originally posted by: kappa


    HI,

    1st: do you have an AIX53 capable machine firmware?
    2nd: do you have a clean NIM LPPSRC & SPOT ?
    3rd: are the applications ready for AIX53?

    You can also try a nim_move_up from a AIX52 mksysb to a new AIX53 test-migrate LPAR.


  • 8.  Re: Upgrade from 5.2 to 5.3

    Posted Wed April 02, 2008 04:23 PM

    Originally posted by: abyalex


    hi,

    yes i have the reqired things here.....

    Through nim upgradtion its new for me...so i have a doubt how to start...
    please give some suggestions
    thanks


  • 9.  Re: Upgrade from 5.2 to 5.3

    Posted Wed April 02, 2008 04:31 PM

    Originally posted by: orphy


    For that many servers to migrate, it's time for you to start doing some bedtime reading...

    http://www.redbooks.ibm.com/abstracts/sg247296.html?Open
    Orphy


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