Windows Vista Forums

allocating memory for VHDs in HyperV - i have no more memory
  1. #1


    robro Guest

    allocating memory for VHDs in HyperV - i have no more memory

    When I create a new VHD and allocate memory to it, is that memory now
    dedicated to that VM while it's running?

    I have a dual quad processor server with 32gig of memory running a
    whole bunch of VMs. CPU is typically at around 1% usage. I need to
    create 3 more VMs as we are using one VM per our customers and have
    three more customers coming into production shortly. However when I
    went to create a new VHD and allocate 4gig to it, I was told I'm out
    of memory. I looked at what I had allocated to other VHDs and I guess
    that would be correct.

    So right now I have

    parent OS - windows server 2008 data center
    MS Dynamics CRM 4.0 - 2 gig (probably lower than it should be?) -
    windows server 2003 standard
    MS Exchange Server 2007 (8 gig) - windows server 2008 standard
    application demo2 - 2 gig - windows xp pro x32
    application demo4 - 2 gig - windows xp pro x32
    ms sql server 2008 x64 - 4gig - windows server 2008 standard
    customer application server 1 - 4 gig - windows xp pro x64
    customer application server 2 - 3.5 gig - windows xp pro x32
    svn - suse linux - 1 gig



    So my issue is that I have tons of processing power and disk space
    left for more VMs, I'm just out of memory. I believe 32gig is the max
    this hardware will support.

    I need to create three more application VMs and we typically use xp
    pro x64 and allocate 4gig to them.

      My System SpecsSystem Spec

  2. #2


    Robert Comer Guest

    Re: allocating memory for VHDs in HyperV - i have no more memory

    >When I create a new VHD and allocate memory to it, is that memory now

    >dedicated to that VM while it's running?
    Correct.

    There's just no way to wedge that many OS's in without cutting down
    how much RAM you have allocated to some of them, however you'd need to
    cut down the other a whole 12G, so that may just be impossible. I'd
    check to make sure your host is at it's maximum RAM, and if so, time
    to buy another box.

    --
    Bob Comer


    On Thu, 18 Dec 2008 10:47:16 -0800 (PST), robro <rrothberg@xxxxxx>
    wrote:

    >When I create a new VHD and allocate memory to it, is that memory now
    >dedicated to that VM while it's running?
    >
    >I have a dual quad processor server with 32gig of memory running a
    >whole bunch of VMs. CPU is typically at around 1% usage. I need to
    >create 3 more VMs as we are using one VM per our customers and have
    >three more customers coming into production shortly. However when I
    >went to create a new VHD and allocate 4gig to it, I was told I'm out
    >of memory. I looked at what I had allocated to other VHDs and I guess
    >that would be correct.
    >
    >So right now I have
    >
    >parent OS - windows server 2008 data center
    >MS Dynamics CRM 4.0 - 2 gig (probably lower than it should be?) -
    >windows server 2003 standard
    >MS Exchange Server 2007 (8 gig) - windows server 2008 standard
    >application demo2 - 2 gig - windows xp pro x32
    >application demo4 - 2 gig - windows xp pro x32
    >ms sql server 2008 x64 - 4gig - windows server 2008 standard
    >customer application server 1 - 4 gig - windows xp pro x64
    >customer application server 2 - 3.5 gig - windows xp pro x32
    >svn - suse linux - 1 gig
    >
    >So my issue is that I have tons of processing power and disk space
    >left for more VMs, I'm just out of memory. I believe 32gig is the max
    >this hardware will support.
    >
    >I need to create three more application VMs and we typically use xp
    >pro x64 and allocate 4gig to them.

      My System SpecsSystem Spec

  3. #3


    robro Guest

    Re: allocating memory for VHDs in HyperV - i have no more memory

    ARGGH!!! Ok thanks. I emailed Dell, I currently have 8x4gig in it,
    which
    of course means if it IS upgradable, I have to pull the 4gigs and
    replace
    them rather than add to them. It sort of sucks to have all these
    available
    hardware resources and be limited by physical memory. I may have to
    kill my CRM project for now in order to make room for production
    applications.

    On Dec 18, 2:03*pm, Robert Comer <bobcomer-remove...@xxxxxx>
    wrote:

    > >When I create a new VHD and allocate memory to it, is that memory now
    > >dedicated to that VM while it's running?
    >
    > Correct.
    >
    > There's just no way to wedge that many OS's in without cutting down
    > how much RAM you have allocated to some of them, however you'd need to
    > cut down the other a whole 12G, so that may just be impossible. *I'd
    > check to make sure your host is at it's maximum RAM, and if so, time
    > to buy another box.
    >
    > --
    > Bob Comer
    >
    > On Thu, 18 Dec 2008 10:47:16 -0800 (PST), robro <rrothb...@xxxxxx>
    > wrote:
    >

    > >When I create a new VHD and allocate memory to it, is that memory now
    > >dedicated to that VM while it's running?
    >

    > >I have a dual quad processor server with 32gig of memory running a
    > >whole bunch of VMs. *CPU is typically at around 1% usage. *I need to
    > >create 3 more VMs as we are using one VM per our customers and have
    > >three more customers coming into production shortly. *However when I
    > >went to create a new VHD and allocate 4gig to it, I was told I'm out
    > >of memory. *I looked at what I had allocated to other VHDs and I guess
    > >that would be correct.
    >

    > >So right now I have
    >

    > >parent OS - windows server 2008 data center
    > >MS Dynamics CRM 4.0 - 2 gig (probably lower than it should be?) -
    > >windows server 2003 standard
    > >MS Exchange Server 2007 (8 gig) - windows server 2008 standard
    > >application demo2 - 2 gig - windows xp pro x32
    > >application demo4 - 2 gig - windows xp pro x32
    > >ms sql server 2008 x64 - 4gig - windows server 2008 standard
    > >customer application server 1 - 4 gig - windows xp pro x64
    > >customer application server 2 - 3.5 gig - windows xp pro x32
    > >svn - suse linux - 1 gig
    >

    > >So my issue is that I have tons of processing power and disk space
    > >left for more VMs, I'm just out of memory. *I believe 32gig is the max
    > >this hardware will support.
    >

    > >I need to create three more application VMs and we typically use xp
    > >pro x64 and allocate 4gig to them.

      My System SpecsSystem Spec

  4. #4


    Robert Comer Guest

    Re: allocating memory for VHDs in HyperV - i have no more memory

    I feel your pain -- it sounds like you have a nice machine, but not
    quite enough RAM capability.

    --
    Bob Comer


    On Thu, 18 Dec 2008 11:28:26 -0800 (PST), robro <rrothberg@xxxxxx>
    wrote:

    >ARGGH!!! Ok thanks. I emailed Dell, I currently have 8x4gig in it,
    >which
    >of course means if it IS upgradable, I have to pull the 4gigs and
    >replace
    >them rather than add to them. It sort of sucks to have all these
    >available
    >hardware resources and be limited by physical memory. I may have to
    >kill my CRM project for now in order to make room for production
    >applications.
    >
    >On Dec 18, 2:03*pm, Robert Comer <bobcomer-remove...@xxxxxx>
    >wrote:

    >> >When I create a new VHD and allocate memory to it, is that memory now
    >> >dedicated to that VM while it's running?
    >>
    >> Correct.
    >>
    >> There's just no way to wedge that many OS's in without cutting down
    >> how much RAM you have allocated to some of them, however you'd need to
    >> cut down the other a whole 12G, so that may just be impossible. *I'd
    >> check to make sure your host is at it's maximum RAM, and if so, time
    >> to buy another box.
    >>
    >> --
    >> Bob Comer
    >>
    >> On Thu, 18 Dec 2008 10:47:16 -0800 (PST), robro <rrothb...@xxxxxx>
    >> wrote:
    >>

    >> >When I create a new VHD and allocate memory to it, is that memory now
    >> >dedicated to that VM while it's running?
    >>

    >> >I have a dual quad processor server with 32gig of memory running a
    >> >whole bunch of VMs. *CPU is typically at around 1% usage. *I need to
    >> >create 3 more VMs as we are using one VM per our customers and have
    >> >three more customers coming into production shortly. *However when I
    >> >went to create a new VHD and allocate 4gig to it, I was told I'm out
    >> >of memory. *I looked at what I had allocated to other VHDs and I guess
    >> >that would be correct.
    >>

    >> >So right now I have
    >>

    >> >parent OS - windows server 2008 data center
    >> >MS Dynamics CRM 4.0 - 2 gig (probably lower than it should be?) -
    >> >windows server 2003 standard
    >> >MS Exchange Server 2007 (8 gig) - windows server 2008 standard
    >> >application demo2 - 2 gig - windows xp pro x32
    >> >application demo4 - 2 gig - windows xp pro x32
    >> >ms sql server 2008 x64 - 4gig - windows server 2008 standard
    >> >customer application server 1 - 4 gig - windows xp pro x64
    >> >customer application server 2 - 3.5 gig - windows xp pro x32
    >> >svn - suse linux - 1 gig
    >>

    >> >So my issue is that I have tons of processing power and disk space
    >> >left for more VMs, I'm just out of memory. *I believe 32gig is the max
    >> >this hardware will support.
    >>

    >> >I need to create three more application VMs and we typically use xp
    >> >pro x64 and allocate 4gig to them.

      My System SpecsSystem Spec

  5. #5


    robro Guest

    Re: allocating memory for VHDs in HyperV - i have no more memory

    I heard back from Dell. It's upgradable to 64gig, but they want over
    $8000 for 8x8gig.
    The entire machine with 2x4 quad processors, 6x300gig 15K SAS drives
    and 32gig was only $7000 shipped including tax (no OS).

    I'm looking at 3rd party 8gig memory, and while I've found it cheaper,
    I haven't found it cheap enough
    to justify upgrading this machine vs. just buying an entire new
    server.

    On Dec 18, 2:41*pm, Robert Comer <bobcomer-remove...@xxxxxx>
    wrote:

    > I feel your pain -- it sounds like you have a nice machine, but not
    > quite enough RAM capability.
    >
    > --
    > Bob Comer
    >
    > On Thu, 18 Dec 2008 11:28:26 -0800 (PST), robro <rrothb...@xxxxxx>
    > wrote:
    >

    > >ARGGH!!! *Ok thanks. *I emailed Dell, I currently have 8x4gig in it,
    > >which
    > >of course means if it IS upgradable, I have to pull the 4gigs and
    > >replace
    > >them rather than add to them. *It sort of sucks to have all these
    > >available
    > >hardware resources and be limited by physical memory. *I may have to
    > >kill my CRM project for now in order to make room for production
    > >applications.
    >

    > >On Dec 18, 2:03*pm, Robert Comer <bobcomer-remove...@xxxxxx>
    > >wrote:

    > >> >When I create a new VHD and allocate memory to it, is that memory now
    > >> >dedicated to that VM while it's running?
    >

    > >> Correct.
    >

    > >> There's just no way to wedge that many OS's in without cutting down
    > >> how much RAM you have allocated to some of them, however you'd need to
    > >> cut down the other a whole 12G, so that may just be impossible. *I'd
    > >> check to make sure your host is at it's maximum RAM, and if so, time
    > >> to buy another box.
    >

    > >> --
    > >> Bob Comer
    >

    > >> On Thu, 18 Dec 2008 10:47:16 -0800 (PST), robro <rrothb...@xxxxxx>
    > >> wrote:
    >

    > >> >When I create a new VHD and allocate memory to it, is that memory now
    > >> >dedicated to that VM while it's running?
    >

    > >> >I have a dual quad processor server with 32gig of memory running a
    > >> >whole bunch of VMs. *CPU is typically at around 1% usage. *I needto
    > >> >create 3 more VMs as we are using one VM per our customers and have
    > >> >three more customers coming into production shortly. *However when I
    > >> >went to create a new VHD and allocate 4gig to it, I was told I'm out
    > >> >of memory. *I looked at what I had allocated to other VHDs and I guess
    > >> >that would be correct.
    >

    > >> >So right now I have
    >

    > >> >parent OS - windows server 2008 data center
    > >> >MS Dynamics CRM 4.0 - 2 gig (probably lower than it should be?) -
    > >> >windows server 2003 standard
    > >> >MS Exchange Server 2007 (8 gig) - windows server 2008 standard
    > >> >application demo2 - 2 gig - windows xp pro x32
    > >> >application demo4 - 2 gig - windows xp pro x32
    > >> >ms sql server 2008 x64 - 4gig - windows server 2008 standard
    > >> >customer application server 1 - 4 gig - windows xp pro x64
    > >> >customer application server 2 - 3.5 gig - windows xp pro x32
    > >> >svn - suse linux - 1 gig
    >

    > >> >So my issue is that I have tons of processing power and disk space
    > >> >left for more VMs, I'm just out of memory. *I believe 32gig is the max
    > >> >this hardware will support.
    >

    > >> >I need to create three more application VMs and we typically use xp
    > >> >pro x64 and allocate 4gig to them.

      My System SpecsSystem Spec

  6. #6


    Robert Comer Guest

    Re: allocating memory for VHDs in HyperV - i have no more memory

    >I heard back from Dell. It's upgradable to 64gig, but they want over

    >$8000 for 8x8gig.
    Holy mackerel, it'd be way cheaper to buy a cheap server just big
    enough for the 3 new VM's.

    --
    Bob Comer



    On Thu, 18 Dec 2008 13:14:03 -0800 (PST), robro <rrothberg@xxxxxx>
    wrote:

    >I heard back from Dell. It's upgradable to 64gig, but they want over
    >$8000 for 8x8gig.
    >The entire machine with 2x4 quad processors, 6x300gig 15K SAS drives
    >and 32gig was only $7000 shipped including tax (no OS).
    >
    >I'm looking at 3rd party 8gig memory, and while I've found it cheaper,
    >I haven't found it cheap enough
    >to justify upgrading this machine vs. just buying an entire new
    >server.
    >
    >On Dec 18, 2:41*pm, Robert Comer <bobcomer-remove...@xxxxxx>
    >wrote:

    >> I feel your pain -- it sounds like you have a nice machine, but not
    >> quite enough RAM capability.
    >>
    >> --
    >> Bob Comer
    >>
    >> On Thu, 18 Dec 2008 11:28:26 -0800 (PST), robro <rrothb...@xxxxxx>
    >> wrote:
    >>

    >> >ARGGH!!! *Ok thanks. *I emailed Dell, I currently have 8x4gig in it,
    >> >which
    >> >of course means if it IS upgradable, I have to pull the 4gigs and
    >> >replace
    >> >them rather than add to them. *It sort of sucks to have all these
    >> >available
    >> >hardware resources and be limited by physical memory. *I may have to
    >> >kill my CRM project for now in order to make room for production
    >> >applications.
    >>

    >> >On Dec 18, 2:03*pm, Robert Comer <bobcomer-remove...@xxxxxx>
    >> >wrote:
    >> >> >When I create a new VHD and allocate memory to it, is that memory now
    >> >> >dedicated to that VM while it's running?
    >>

    >> >> Correct.
    >>

    >> >> There's just no way to wedge that many OS's in without cutting down
    >> >> how much RAM you have allocated to some of them, however you'd need to
    >> >> cut down the other a whole 12G, so that may just be impossible. *I'd
    >> >> check to make sure your host is at it's maximum RAM, and if so, time
    >> >> to buy another box.
    >>

    >> >> --
    >> >> Bob Comer
    >>

    >> >> On Thu, 18 Dec 2008 10:47:16 -0800 (PST), robro <rrothb...@xxxxxx>
    >> >> wrote:
    >>

    >> >> >When I create a new VHD and allocate memory to it, is that memory now
    >> >> >dedicated to that VM while it's running?
    >>

    >> >> >I have a dual quad processor server with 32gig of memory running a
    >> >> >whole bunch of VMs. *CPU is typically at around 1% usage. *I need to
    >> >> >create 3 more VMs as we are using one VM per our customers and have
    >> >> >three more customers coming into production shortly. *However when I
    >> >> >went to create a new VHD and allocate 4gig to it, I was told I'm out
    >> >> >of memory. *I looked at what I had allocated to other VHDs and I guess
    >> >> >that would be correct.
    >>

    >> >> >So right now I have
    >>

    >> >> >parent OS - windows server 2008 data center
    >> >> >MS Dynamics CRM 4.0 - 2 gig (probably lower than it should be?) -
    >> >> >windows server 2003 standard
    >> >> >MS Exchange Server 2007 (8 gig) - windows server 2008 standard
    >> >> >application demo2 - 2 gig - windows xp pro x32
    >> >> >application demo4 - 2 gig - windows xp pro x32
    >> >> >ms sql server 2008 x64 - 4gig - windows server 2008 standard
    >> >> >customer application server 1 - 4 gig - windows xp pro x64
    >> >> >customer application server 2 - 3.5 gig - windows xp pro x32
    >> >> >svn - suse linux - 1 gig
    >>

    >> >> >So my issue is that I have tons of processing power and disk space
    >> >> >left for more VMs, I'm just out of memory. *I believe 32gig is the max
    >> >> >this hardware will support.
    >>

    >> >> >I need to create three more application VMs and we typically use xp
    >> >> >pro x64 and allocate 4gig to them.

      My System SpecsSystem Spec

allocating memory for VHDs in HyperV - i have no more memory problems?

Similar Threads
Thread Thread Starter Forum Replies Last Post
Vista runs out of physical memory when working with files > 1GB - memory management issue? Robert Janik Vista performance & maintenance 2 21 Apr 2010
inetinfo.exe process is allocating more memory than usual Kevin SBS Server 1 03 Sep 2009
Mystery Vista Used Memory grows until Out of Memory and crash - howto diagnose? hogwell Vista performance & maintenance 0 13 Apr 2009
Re: GC.Collect() not cleaning memory, how to find out what references to lots of memory still exist? Henning Krause [MVP - Exchange] .NET General 1 15 Apr 2008
Difference between Physical Memory and the Vista System Memory (Ra DP Vista hardware & devices 2 20 Feb 2008