Re: p650 internal disks

From: Abdellah Djebli (abdellah.djebli_at_SICKKIDS.CA)
Date: 01/28/04

  • Next message: terry.german_at_PHONES4U.CO.UK: "Re: p650 internal disks" 
    Date:         Wed, 28 Jan 2004 09:11:43 -0500
To: aix-l@Princeton.EDU

    Very good point Holger. Our P650 has the same configuration as yours and
    both hdisk0 and hdisk1 are on
    the same controller, I wonder why. If you ever find out, could you share
    with list. Although I just think that the people
    at the assembly plant do not take the time to think about optimum
    configuration.

    Abdu

                          Holger.VanKoll@SW
                          ISSCOM.COM To: aix-l@princeton.edu
                          Sent by: IBM AIX cc:
                          Discussion List Subject: p650 internal disks
                          <aix-l@princeton.
                          edu>

                          01/28/2004 08:22
                          AM
                          Please respond to
                          IBM AIX
                          Discussion List

    Hello,

    a p650 has 2 internal scsi-controller.

    I noticed that on all of my p650 the 2 internal disks (rootvg) are
    connected to the same controller. Nothing is connected to the 2nd
    controller.

    If there are external (non ssa, non san) disks, there is a 3rd and 4th
    scsi-controller to which the disks are connected to.

    I see no point in connecting both rootvg-disks to the same controller as
    long there is an unused 2nd controller; neither regarding availability nor
    performance.

    But I dont know if this setup is shipped from IBM like this or if it is
    done somewhere @ ibm in my country.

    So, could you please tell me if your p650 have the same setup?

    If anybody got an idea about any advantage with this setup, please let me
    know.

    Regards,

    Holger

  • Next message: terry.german_at_PHONES4U.CO.UK: "Re: p650 internal disks"

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