Re: [Ipmitool-devel] Optimizing the use of ipmitool

[Al C. <ch...@ll...>]

Hi Mark,

On Fri, 2008-11-21 at 14:56 -0500, Mark Seger wrote:
> I use ipmitool in my collectl monitoring tool - see 
> http:// collectl.sourceforge.net/ - and now can continuously monitor some 
> of my sensors.  For now I'm just looking at temperatures and fans and as 
> a default monitoring frequency chose 2 minutes, though that can easily 
> be specified by the users.  After some help from this list, I discovered 
> I can greatly improve ipmitool performance by using -S which I now do.  
> After some experimentation I also discovered it was more efficient to 
> explicitly ask for explicit sensors using "ipmitool sdr type xxx" rather 
> than having it report all sensors since that does run slows on some 
> systems I've tested on and I'm sure it's system specific.  What I would 
> ultimately like to do is run ipmitool one and give it a list of types 
> but that doesn't sound possible.  

Do you mean something like "ipmitool
--groups=fan,temperature,power_supply"??

I added this feature into ipmi-sensors and ipmimonitoring in FreeIPMI by
checking the sensor_type field of each SDR entry before reading the
sensor's reading.  An equivalent option and SDR entry check in ipmitool
should be very doable.

Al

> Are there any plans to support such a 
> capability in the future?
> 
> I did discover the "ipmitool sdr get" command which the help says takes 
> an id as a target but when I tried it, it didn't work!  First I did this 
> to get a list of IDs:
> 
> [root@hadesn1 ~]# ipmitool sdr elist
> UID Light        | 01h | ok  | 23.1 | 0 unspecified
> Int. Health LED  | 02h | ok  | 23.2 | 0 unspecified
> VRM 1            | 03h | lcr |  9.1 | 0 unspecified
> VRM 2            | 04h | lcr |  9.2 | 0 unspecified
> Temp 1           | 05h | ok  |  7.1 | 47 degrees C
> Temp 2           | 06h | ok  |  3.1 | 34 degrees C
> Temp 3           | 07h | ok  |  3.2 | 30 degrees C
> Temp 4           | 08h | ok  |  3.3 | 30 degrees C
> Temp 5           | 09h | ok  |  3.4 | 32 degrees C
> Temp 6           | 0Ah | ok  |  3.5 | 30 degrees C
> Temp 7           | 0Bh | ok  |  3.6 | 30 degrees C
> Temp 8           | 0Ch | ok  |  8.1 | 57 degrees C
> Temp 9           | 0Dh | ok  | 39.1 | 24 degrees C
> Virtual Fan      | 0Eh | lnc |  7.2 | 37.24 unspecifi
> Enclosure Status | 0Fh | ok  | 23.3 | 0 unspecified
> Power Meter      | 10h | lcr |  7.3 | 204 Watts
> 
> but when I did this, it didn't:
> [root@hadesn1 ~]# ipmitool sdr get 10h
> Unable to find sensor id '10h'
> 
> I assume I'm misreading the syntax but it did say "ipmitoold sdr elist" 
> reports IDs.  Maybe some examples in the man page would help?  Perhaps 
> it's just as well that this didn't work because I'd be tempted to use it 
> and I'm guessing entity IDs vary across different vendors and it looks 
> like types don't, at least not for the testing I've done so far.  Also, 
> I have no idea what the 4th column means.  For example, in the Power 
> Meter entry how would you interpret 7.3?  Is there any documentation on 
> the output format?  Maybe it's buried in the man page but nothing jumped 
> out in my quick read.
> 
> -mark
> 
> 
> 
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-- 
Albert Chu
ch...@ll...
Computer Scientist
High Performance Systems Division
Lawrence Livermore National Laboratory