[mrtg] Some questions about monitoring HP-UX

[Michael Markstaller]

I have to graph some HP-UX boxes and can expect rather no help from the admins as they'd for some reason prefer to not monitor these boxes at all..
Some system-info by SNMP: sysDescr: HP-UX host B.11.11 U 9000/800 xxxx, sysObjectID: enterprises.hp.nm.system.hpux.hp9000s800
The SNMP-agent running reports itself as ".snmpdConf.9.0 = "@(#) HP OpenView Emanate SNMP Agent. sys HPUX 11.X"

I already found one example config in the archives which works fine so far:
http://www.ee.ethz.ch/~slist/mrtg/msg11613.html / http://www.admins-tipps.net/management/mrtg.htm
but I'm not sure how to interpret and graph some values.. 
Maybe there's somebody out there with experience on monitoring HP-UX who can give me some quick hints.

- The counters computerSystemAvgJobsX, is it something comparable with load average under Linux and if not what max-values should be expected on a smooth running system ? 
- The computerSystemFreeMemory, computerSystemFreeSwap counters seems to report in AllocationUnits (or something similar), is there a fixed AllocationUnit for HP-UX or somewhere to read the blocksize over SNMP ? 
This is more for education, as I currently calculate the free mem/swap by division of free/total*100

- Am I right with the assumptiuon that the above mentioned example-config correctly calculates CPU usage by doing 
Target[HPUX.cpu]: computerSystemIdleCPU&computerSystemUserCPU:comm at host + computerSystemNiceCPU&computerSystemSysCPU:comm at host
Somehow I'm in doubt if it's the right way to add up Idle+Nice and User+System, all of these are Counter32, so assuming this is right, all 4 added up should always give 100 for 1 second. 

- Is there anything else vital which can be monitored by SNMP to see the system is running smooth

- Is there really no HOST-MIB available because it'd contain values easier to understand&compare (it's unlikely that they'll install UCD-SNMP for me..)


Thanks for any help


Michael

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