Hmm... [r...@server ~]# ipmitool -v sdr type Fan Sensor ID : FAN 1 RPM (0x30) Entity ID : 7.1 (System Board) Sensor Type (Analog) : Fan Sensor Reading : 1320 (+/- 120) RPM Status : ok Nominal Reading : 10080.000 Normal Minimum : 16680.000 Normal Maximum : 23640.000 Lower critical : 720.000 Positive Hysteresis : 600.000 Negative Hysteresis : 600.000 Minimum sensor range : Unspecified Maximum sensor range : Unspecified Event Message Control : Per-threshold Readable Thresholds : lcr Settable Thresholds : Threshold Read Mask : lcr Assertion Events : Assertions Enabled : lcr- Deassertions Enabled : lcr- ...clip...
Does that mean that my speed of 1320 RPM is below the 'normal minimum' of 16680.000 RPM? That's quite a difference, if so... It shows that for almost all of the fans. On 12/08/10 14:37, Ryan Cox wrote: > That is interesting. That appears to be showing two sets of fans (the > 7.1s and 10.*). Do you have 4 power supplies in those? I don't know > off the top of my head how many PSUs an R910 takes. 10.* in ipmitool is > for power supplies and 7 is for the system board (see "ipmitool sdr > entity help"). Maybe reseat them one at a time if you have enough power? > > You could try the ipmitool command with "-v" to see more information > > Erich Weiler wrote: >> Very useful: >> >> [r...@server ~]# ipmitool sdr type Fan >> FAN 1 RPM | 30h | ok | 7.1 | 1320 RPM >> FAN 2 RPM | 31h | ok | 7.1 | 1320 RPM >> FAN 3 RPM | 32h | ok | 7.1 | 1440 RPM >> FAN 4 RPM | 33h | ok | 7.1 | 1680 RPM >> FAN 5 RPM | 34h | ok | 7.1 | 1560 RPM >> FAN 6 RPM | 35h | ok | 7.1 | 1680 RPM >> Fan RPM | 36h | ok | 10.1 | 3480 RPM >> Fan RPM | 37h | ok | 10.2 | 10080 RPM >> Fan RPM | 38h | ok | 10.3 | 3120 RPM >> Fan RPM | 39h | ok | 10.4 | 2160 RPM >> Fan Redundancy | 75h | ok | 7.1 | Fully Redundant >> >> I wonder why one fan is so fast while the others are slower. I'm >> beginning to think the BIOS might be the next step, to check Fan speed >> options... >> >> On 12/08/10 13:55, Ryan Cox wrote: >>> We don't use OMSA here but do use ipmitool extensively. This may get >>> you what you need. >>> >>> Load the following kernel modules first: ipmi_si, ipmi_devintf, >>> ipmi_msghandler >>> Give it a few seconds and then run: >>> ipmitool sdr type Fan >>> >>> It can also be run remotely against an iDRAC (or BMC). >>> >>> We have had thermal issues before and it was almost always the result >>> of thumbscrews that weren't in all the way. There definitely could >>> be a different issue though. >>> >>> Ryan >>> >>> On 12/08/2010 02:49 PM, Erich Weiler wrote: >>>> Yeah, I tried OMSA, but for the life of me could not get it to read >>>> anything from the IPMI/BIOS interfaces. No idea why. I may just >>>> have to reboot and go into the BIOS manually and see what I can see >>>> there. >>>> >>>> Thanks! >>>> >>>> On 12/08/10 13:49, Bond Masuda wrote: >>>>> Have you checked the fan speeds? Are they at full throttle? I don't >>>>> know >>>>> much about the R910, but usually you can get fan speed readings >>>>> from OMSA. >>>>> >>>>> -----Original Message----- >>>>> From: [email protected] >>>>> [mailto:[email protected]] On Behalf Of Erich Weiler >>>>> Sent: Wednesday, December 08, 2010 1:40 PM >>>>> To: Ryan Cox >>>>> Cc: [email protected] >>>>> Subject: Re: R910/Linux CPU Heat Problems? >>>>> >>>>>> Just so you know, the kernel is merely responding to interrupts >>>>>> from the processor cores themselves saying they are over >>>>>> temperature. The cores have their thresholds set and the kernel >>>>>> can't and doesn't mess with them. If the kernel reports the >>>>>> processors are hot, the processors are actually hot. >>>>> >>>>> Ah, good to know. It may be that the air is simply not cool enough >>>>> in the datacenter, but this would be the first time I've ever seen >>>>> this with any of our servers. I'll double check the screws and >>>>> fans and see if that might be an issue... >>>>> >>>>> _______________________________________________ >>>>> Linux-PowerEdge mailing list >>>>> [email protected] >>>>> https://lists.us.dell.com/mailman/listinfo/linux-poweredge >>>>> Please read the FAQ at http://lists.us.dell.com/faq >>>>> >>> > _______________________________________________ Linux-PowerEdge mailing list [email protected] https://lists.us.dell.com/mailman/listinfo/linux-poweredge Please read the FAQ at http://lists.us.dell.com/faq
