Hi,
I think you may find the units shut down at 50C ....
I have seen this in a computer room where the AC failed and everything
cooked ....
System rebooted after an internal halt. Fri Jul 4 09:41:30 WST
[monitor.shutdown.overTemp:EMERGENCY]: Emergency shutdown: System too
hot! Emergency Shutdown: System too hot: sensor Temp_Unit_B Fri Jul 4
09:41:30 WST [monitor.shutdown.overTemp:EMERGENCY]: Emergency shutdown:
System too hot! current temperature is 50 C, critical high is 50 C Fri
Jul 4 09:41:30 WST [statd:warning]: Fri Jul 4 09:41:30 WST
[monitor.shutdown.overTemp:EMERGENCY]: Emergency shutdown: System too
hot! OVER_TEMPERATURE_SHUTDOWN !!!
See the following .....
Bug Detail
Bug ID 43776
Title False "Emergency shutdown: System too hot" message
Duplicate of
Bug Severity 3 - Serious inconvenience
Bug Status Closed
Product Data ONTAP
Bug Type Unknown
Description
Formatted Filer reports an "Emergency shutdown: System too hot"
message when the
motherboard temperature sensor records above the high critical limit.
In this condition, the filer will automatically halt to the ok prompt.
Workaround
Formatted If the ambient temperature indeed is above the maximum
operating range
for the filer, then this warning message is valid. Check the input
airflow for any possible blockage, and turn off the filer until the
ambient temperature is well within the recommended operating
temperature range (<30 degrees Celsius).
A typical output for the temperature sensors using the motherboard
diagnostic environmental test is:
--System temperatures (C): TempA=25, tempB=25, tempC=25
--System high limits (C): TempA=50, tempB=50, tempC=50
Environmental check ............... PASSED
If the ambient temperature is much lower than 40 degrees Celsius,
then use the motherboard diagnostic environmental test to confirm
that all three system temperatures are reading within 3-4 degrees
Celsius for a properly operating motherboard. If one of the sensors
is measuring much more than the other two, replace the motherboard.
Notes
Formatted
Related Solutions
Fixed-In Version This bug is not scheduled to be fixed, you may opt to
open a technical support case if you would like to contact Network
Appliance regarding the status of this bug. A complete list of releases
where this bug is fixed is available here.
Related Bugs
Bug Watch Status This bug is unwatchable.
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-----Original Message-----
From: owner-toasters(a)mathworks.com [mailto:owner-toasters@mathworks.com]
On Behalf Of Barry Robison
Sent: Friday, 29 July 2005 12:01 PM
To: devnull(a)adc.idt.com
Cc: NetApp Toasters List
Subject: Re: Temperature sensor on Shelf
devnull(a)adc.idt.com wrote:
> I have a misbehaving temperature sensor on my one of my shelves which
> is causing the shelf to claim to be at 53 C and then drop down to 26C
> every other minute. All of this activity generates a lot of
> autosupport emails.
>
> Anyone got any ideas on
>
> 1. How to disable this temperature probe fow now
in DFM you can increase
Environmental Monitoring Interval
to something quite high...
>
> 2. Does the filer shut off if the temperature hits some number.
no they don't. We looked into this for a filer we ahve in a self
contained A/C rack. You have to script something up to power down the
Filer head in overheat situations.
hope this helps!