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Thread: 2,000 VMs in Dev/Test but only 100 VMs in Production

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  1. #1
    Mike M NNTP User

    2,000 VMs in Dev/Test but only 100 VMs in Production

    Wow!

    Never realized that a 20:1 ratio for devrod would/could ever exist.

    http://www.networkworld.com/news/201...vm-sprawl.html

    "a VMware customer in the online travel business located in Southlake,
    Texas, has about 2,000 VMs in its test and development lab and another 100
    VMs in production. "


  2. #2
    Michael Rae NNTP User

    Re: 2,000 VMs in Dev/Test but only 100 VMs in Production

    Sounds like my group, every since VM, we are putting more and more little
    servers on the network wee in the past, we wouldn't have. We keep spending
    more money to expand out VM clusters and storage and personally I question
    it but I come from old school were I like to be able to point to a server
    and say "that the server that does...."

    Why are going back to the 80's mainframe concept of having one big computer
    that does everything?


    "Mike M" <nospam@nospam.net> wrote in message
    news:1lzAo.590$325.185@kovat.provo.novell.com...
    > Wow!
    >
    > Never realized that a 20:1 ratio for devrod would/could ever exist.
    >
    > http://www.networkworld.com/news/201...vm-sprawl.html
    >
    > "a VMware customer in the online travel business located in Southlake,
    > Texas, has about 2,000 VMs in its test and development lab and another 100
    > VMs in production. "




  3. #3
    cjcox NNTP User

    Re: 2,000 VMs in Dev/Test but only 100 VMs in Production

    Michael Rae wrote:

    > Sounds like my group, every since VM, we are putting more and more little
    > servers on the network wee in the past, we wouldn't have. We keep spending
    > more money to expand out VM clusters and storage and personally I question
    > it but I come from old school were I like to be able to point to a server
    > and say "that the server that does...."
    >
    > Why are going back to the 80's mainframe concept of having one big
    > computer that does everything?
    >


    Don't look at it that way.

    The real deal is that most CPUs are oversized for what we use. So VMs take
    advantage of today's processors (which are usually MORE than one person
    could possibly use). With that said, memory is an issue, disk is an issues,
    etc... (your points... well taken).

    The most expensive item in a datacenter?
    .....
    .....

    REAL ESTATE!

    So... things like VMs help reduce the real estate footprint (which in many
    cases has infinite costs). We take it to the next level, we use hypervisors
    on blades... the ultimate in density. Allowed me to remove an entire ROW of
    racks.

    We're using LDOMs and containers/zones on Snoracle machines, LPARs on our
    Power boxes (no VMs yet), partitions and VMs on our HP-UX boxes... and of
    course x86 is covered by our ESX/ESXi, Xen and RHEV hosts. So while we've
    reduced out foot print dramtically, the number of clients I can serve has
    GREATLY increased.

    Oh... and we do have zSeries as well.. and yes, we run multiple zLinux under
    zVM on them.



  4. #4
    GofBorg NNTP User

    Re: 2,000 VMs in Dev/Test but only 100 VMs in Production

    > Wow!
    >
    > Never realized that a 20:1 ratio for devrod would/could ever exist.
    >
    > http://www.networkworld.com/news/201...g-question-vm-

    sprawl.html
    >
    > "a VMware customer in the online travel business located in Southlake,
    > Texas, has about 2,000 VMs in its test and development lab and another 100
    > VMs in production. "


    Because developers never delete anything.


  5. #5
    Dave Howe NNTP User

    Re: 2,000 VMs in Dev/Test but only 100 VMs in Production

    On 08/11/2010 16:03, GofBorg wrote:
    >> Wow!
    >>
    >> Never realized that a 20:1 ratio for devrod would/could ever exist.
    >>
    >> http://www.networkworld.com/news/201...g-question-vm-

    > sprawl.html
    >>
    >> "a VMware customer in the online travel business located in Southlake,
    >> Texas, has about 2,000 VMs in its test and development lab and another 100
    >> VMs in production. "

    >
    > Because developers never delete anything.


    Its not impossible when dev is done *properly*, given they are VMs. Each
    developer probably has his own "dev" copy of at least 20-30 of the
    production machines, then there will be an overall "acceptance" set of
    all 100 machines (to stage code before release) - you might expect maybe
    10-15 of the dev machines to be live at any time, and no more than two
    or three of the staging/acceptance machines. all the rest will be
    sitting shut down or suspended, taking up hard drive space but not cpu
    or ram.

  6. #6
    GofBorg NNTP User

    Re: 2,000 VMs in Dev/Test but only 100 VMs in Production

    > the rest will be
    > sitting shut down or suspended, taking up hard drive space but not cpu
    > or ram.


    Your backup/storage vendor loves you.

  7. #7
    Dave Howe NNTP User

    Re: 2,000 VMs in Dev/Test but only 100 VMs in Production

    On 15/11/2010 19:49, GofBorg wrote:
    >> the rest will be
    >> sitting shut down or suspended, taking up hard drive space but not cpu
    >> or ram.

    >
    > Your backup/storage vendor loves you.


    Yup. sometime I really must get around to pointing out the I in raid is
    supposed to be *inexpensive*

    I note that the lit some put out now substitutes "independent".

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