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Forum Discussion
M4300 24X: sudden restarts
Hi, i have since months sudden restarts with a M4300-24X (Firmware 12.0.9.3) in a single router setup. I use mostly LAGs with 2 ports for every system (Layer3+4 mode) and has disabled the most defa...
My temperatures at 3 units. I also think that these are way too high! The server room is at 19 degrees, but the switches don't get cooler. There are 2 U space above and below and the cabinets are completely cooled + MAC 65 ℃ (Unit1) 63 ℃ (Unit2) 43 ℃ (Unit3) Maximum operating temperature 81 ℃ (Unit1) 81 ℃ (Unit2) 83 ℃ (Unit3)
Dear wuebra,
as i see in your former comment, you have also unexpected restarts probably without significant log messages. Do the number of connected ports differ between your 3 units and cause the temperature differences ?
Do you see only restarts with unit 1 and 2, which have the higher temperatures, and no restart on unit 3 ?
From my experience my unit was instable at 65 "C and at the end before the power supply replacement only the additional connected serviceport caused restarts every day.
It's interesting for me, that another power supply has changed the fan control behaviour.
The Netgear support has also a CPLD patch, which should increase the fan speeds.
Can you give the output of "show environment" of your units.
Here is my situation with the replaced power supply:
Temperature Sensors: Unit Sensor Description Temp (C) State Max_Temp (C) ---- ------ ---------------- ---------- -------------- -------------- 1 1 MAC 53 Normal 81 Fans: Unit Fan Description Type Speed Duty level State ---- --- -------------- --------- ------------- ------------- -------------- 1 1 Fan-1 Fixed 5280 27% Operational 1 2 Fan-2 Fixed 4440 27% Operational
For now it is stable with this temperature between 53 and 55 "C.
Best Regards,
Ralf
hello koralle / Ralf,
are you German? the name sounds like this :)
So far unit 2 has mostly restarted. And the syslog was connected to Unit 2 :(. 1x restarted everything.
Unit 3 has only been connected for 1 week. For failover.
The support offered me a CLPD patch. I can only install it outside of business hours.
here is my environment.Unfortunately I have a lot less fan revolutions :(
Temperature Sensors: Unit Sensor Description Temp (C) State Max_Temp (C) ---- ------ ---------------- ---------- -------------- -------------- 1 1 MAC 64 Normal 81 2 1 MAC 63 Normal 81 3 1 MAC 43 Normal 83 3 2 System 52 Normal 83 Fans: Unit Fan Description Type Speed Duty level State ---- --- -------------- --------- ------------- ------------- -------------- 1 1 Fan-1 Fixed 3240 16% Operational 1 2 Fan-2 Fixed 2880 16% Operational 2 1 Fan-1 Fixed 3240 16% Operational 2 2 Fan-2 Fixed 2880 16% Operational 3 1 Fan-1 Fixed 3240 16% Operational 3 2 Fan-2 Fixed 2760 16% Operational
Dear wuebra,
the fan speeds/duty level of your units are at the same level, which i've had with the "faulty" power supply.
The CPLD Patch (dev cpldUpdate(/media/usb-storage/XSM4324CS_V00_111419.jbc,0); ), which the Netgear Support has given to me, could be applied without reboot or disruption.
But this patch hasn't helped much, but maybe you had another patch.
I would predict, that your units 1 and 2 would be stable, if you had the suitable fan speeds.
Netgear should explain, how the fan control is working and why a power supply is controlling the speeds.
Best Regards,
Ralf
PS: I'm german ;-)
- So far I do not have the patch because I can only apply it at the weekend (when restarting).
here is a production with 800 employees.
Unless it works without a restart.
I have now asked the support if you can simply exchange the power supplies for us ..... reboots are unacceptable ..
ps .: ok ... me too :) Glückauf Ralf;)
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