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Re: [Xen-users] Windows DomUs not seeing additional new ram

To: Brian Krusic <brian@xxxxxxxxxx>
Subject: Re: [Xen-users] Windows DomUs not seeing additional new ram
From: James Miller <jimm@xxxxxxxxxxxxxxx>
Date: Tue, 03 Feb 2009 12:53:25 -0600
Cc: xen-users <xen-users@xxxxxxxxxxxxxxxxxxx>, Thiago Camargo Martins Cordeiro <thiagocmartinsc@xxxxxxxxx>
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Brian Krusic wrote:
You can try to enable the 3/1 mem switch to see if ti works, I use it in XP.

Its solved some key issues with apps needing more then 2GB mem.

Your boot.ini will look something like this;

multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional 3GB" /fastdetect /3GB multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /fastdetect

To edit it by the book (I've had issues just hand editing it), do this;

1 - Open System Properties.
2 - Choose Advanced.
3 - Startup/Recovery, then Settings.
4 - At the top under System startup choose Edit.
5 - Copy the line and add /3GB ** Its alays good to have a fall back if the 3GB switch fubars something. * Remember to choose it during startup or select it as the default one to boot.

Yea, and its all a POS. I recall when MS$ was every ones buddy, ppl loved Windows 3.11 and the enemy was IBM/OS2.

- Brian

On Feb 3, 2009, at 10:17 AM, Thiago Camargo Martins Cordeiro wrote:

I hate micro$oft too! ikikikik! Welcome to the club!  :-D

2009/2/3 James Miller <jimm@xxxxxxxxxxxxxxx <mailto:jimm@xxxxxxxxxxxxxxx>>

    Sorry for the top post.
    I found out that Windows 2003 WebEd has a 2Gig memory limit.  I


    James Miller wrote:

        Hello everyone,

        I have a Dom0 server running xen 3.0.1 and I just upgraded
        the ram from 16Gig to 32Gig.  On that server I have 7 Windows
        2003 WebEd DomUs.  They had been configured for 2048M of RAM.
         I changed the config file for each one to have 4096MB RAM.
         After restarting each of the Windows DomUs they still only
        report having 2048M of RAM.  However 'xm top' reports each
        having 4096MB RAM.  I hope it's something simple I'm missing
        and any suggestions would be greatly appreciated.

        xentop - 11:36:46   Xen 3.1.0-53.el5
        8 domains: 3 running, 3 blocked, 0 paused, 0 crashed, 0
        dying, 0 shutdown
        Mem: 33553396k total, 30631536k used, 2921860k free    CPUs:
        8 @ 2333MHz
            NAME  STATE   CPU(sec) CPU(%)     MEM(k) MEM(%)
         MAXMEM(k) MAXMEM(%) VCPUS
         Domain-0 -----r        717   66.8     524288    1.6   no
        limit       n/a     8
evalvm01.vm ------ 121 40.0 4202368 12.5 4210688 12.5 1 evalvm02.vm --b--- 86 8.7 4202368 12.5 4210688 12.5 1 evalvm03.vm --b--- 318 38.1 4202368 12.5 4210688 12.5 1 evalvm04.vm -----r 146 29.3 4202368 12.5 4210688 12.5 1 evalvm05.vm -----r 1407 100.0 4202368 12.5 4210688 12.5 1 evalvm06.vm --b--- 352 27.2 4202368 12.5 4210688 12.5 1 evalvm07.vm ------ 145 18.6 4202368 12.5 4210688 12.5 1


Thanks for the suggestions Brian. I had read about that 3gig App/1gig OS trick and was going to give it a shot. I'll let ya'll know if it works (or not).

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