Re: Normal operating temerpature for ES40

From: John Brandon (brandon_at_dalsemi.com)
Date: 05/01/04

  • Next message: John Smith: "VMS opportunities HP misses every day" 
    Date: Fri, 30 Apr 2004 17:08:52 -0500

    I had a number of problem:

    Improper calibration of the A/C - it was 8 degrees off; meaning that it read
    80 and it was actually 88.

    A/C kick in was set to 80 and it should have been set to 74.

    The failure of A/C units that provided cooling for the work areas surrounding
    the datacenter. The air surrounding the datacenter heated the datacenter and
    the datacenter A/C units could not maintain a proper environment.

    In addition the server racks are perpendicular to the air flow - and the server
    racks are 20" from the back wall. So improper air-flow! In a major way.

    Since the ES40 is a front-back air-flow we put a lower in front of the cabinet
    and got a few degrees down. However when we placed the blower in the rear of
    the cabinet to cycle the heated (stagnant) air away from the cabinet the
    temperature went down even further.

    Since we have repaired the A/C problems mentioned above we are now a bit more
    happy with the following temperature ranges:

    SENSOR_0 = 78.80
    SENSOR_1 = 78.80
    SENSOR_2 = 80.60
    SENSOR_3 = 69.80
    SENSOR_4 = 75.20
    SENSOR_5 = 69.80
    SENSOR_6 = 71.60

    Jim [jim.nospam.gould@charter.net]
    > I ran this on my ES40 and received the following output. This machine is in
    > an air conditioned room and has been running for about 5 years under the
    > same conditions. I have never had a hardware issue with this box except for
    > a failed internal scsi drive.
    >
    > -------------------------------------------
    >
    > ES40 CPU Temperature Monitor
    >
    > -------------------------------------------
    >
    > 2004-04-30 14:19 CPU SENSOR 00 temperature 80.60 Farenheit WARNING - HIGH
    > TEMPERATURE
    >
    > 2004-04-30 14:19 CPU SENSOR 01 temperature 96.80 Farenheit WARNING - HIGH
    > TEMPERATURE
    >
    > 2004-04-30 14:19 CPU SENSOR 02 temperature 78.80 Farenheit
    >
    > 2004-04-30 14:19 CPU SENSOR 03 temperature 75.20 Farenheit
    >
    > 2004-04-30 14:19 INT SENSOR 04 temperature 77.00 Farenheit
    >
    > 2004-04-30 14:19 INT SENSOR 05 temperature 73.40 Farenheit
    >
    > 2004-04-30 14:19 INT SENSOR 06 temperature 75.20 Farenheit
    >
    > Your numbers look better than mine!

    J*o*h*n B*r*a*n*d*o*n
    VMS Systems Administrator
    firstname.lastname.spam.me.not@dalsemi.com

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