2008-01-01 00:00:00
In my mini-howto about monitoring HP and Dell specific SNMP objects through Net-SNMP I refered to a few interesting objects which could be read through their repsective SNMP agents. This page covers the interesting objects for HP Compaq systems.
Right now I've only got a very limited amount of different models to test all this stuff on, so bear with me :) The following lists are only a small selection from all possible objects, that we found interesting. A full list of available options can be obtained by running:
snmpwalk -c public localhost .1.3.6.1.4.1.232
I've tried my best at making the more interesting parts of the HP and Dell MIBs legible. The results can be found in the PDF, in the menu on the left. But once again, these lists are only a small subset of the complete MIB for both vendors. You won't know all that's available to you unless you start digging through the flat .TXT files yourself. Unlike Sun, HP and Dell -do- publish their MIB files freely, so you'll have no trouble finding them on the web.
I've also expanded on the HP SIM MIB a little in a PDF document. Get it over here.
Unfortunately, HP and Compaq have made it impossible to monitor hard disk statuses without add-on software. The plain vanilla SNMP agent has no way of filling the relevant objects. Instead it requires the CPQarrayd add-on.
If you do choose to install this piece of software, you can find all the objects regarding -internal- drives under OID .1.3.6.1.4.1.232.3.2.5.2 (cpqDaPhyDrvErrTable). Refer to CPQIDA.MIB.txt for all relevant details and a full listing of the appropriate OIDs.
Currently I have no way of making sure, but I assume that the alert message for HDD[0-7] can be found in .1.3.6.1.4.1.232.3.2.5.2.1.15.[0-7]. Any value above 0 is indicates a failure.
All object IDs below fit under .1.3.6.1.4.1.232. These objects should be usable on every HP system in the DL/ML rangen, although I have only tested the on DL380, DL385, DL580 and ML570.
Object |
Description |
Values |
.1.2.2.1.1.6.OID |
CPU[0-3] status |
1/2 = ok, 3 = warn, 4 = crit |
.3.2.2.1.1.6.OID |
HDD controler |
1/2 = ok, 3 = warn, 4 = crit |
.3.2.3.1.1.11.OID |
LDD[0-X] status |
1/2 = ok, 3 = warn, 4 = crit |
.3.2.4.1.1.6.OID |
Hot spare HDD status |
>2 =crit |
.3.2.5.1.1.37.OID |
HDD[0-X] status |
1/2 = ok, 3 = warn, 4 = crit |
.5.2.2.1.1.12.OID |
SCSI controler status |
1/2 = ok, 3 = warn, 4 = crit |
.5.2.3.1.1.8.OID |
SCSI LDD[0-X] status |
1/2 = ok, 3 = warn, 4 = crit |
.5.2.4.1.1.26.OID |
SCSI HDD[0-x] status |
1/2 = ok, 3 = warn, 4 = crit |
.6.2.6.7.1.9.OID |
Fan status |
1/2 = ok, 3 = warn, 4 = crit |
.6.2.6.8.1.4.1 |
CPU0 temperature |
Contains current temperature |
.6.2.6.8.1.4.4 |
CPU1 temperature |
Contains current temperature |
.6.2.6.8.1.4.5 |
PSU temperature |
Contains current temperature |
.6.2.9.3.1.4.0.OID |
PSU[0-X] status |
1/2 = ok, 3 = warn, 4 = crit |
.14.2.2.1.1.5.OID |
IDE HDD[0-X] status |
1/2 = ok, 3 = warn, 4 = crit |
As I already said, most of the OIDs from the tables above can be used to monitor vanilla HP systems (with the exceptions of the hard disks). The biggest difference lies in the placement of certain fans and sensors. The table below outlines the various locations, depending on the model.
Each system contains multiple fans and temperature sensors and will thus have multiple instances of these objects in its SNMP tree. The locations for each of these instances can be read from .6.2.6.7.1.3.OID (fans) and 6.2.6.8.1.3.OID (temperature sensor). The $OID part of these numeric sequences are always .1.1, .1.2, .1.3, .1.4 and so on.
Fan |
DL380 |
DL385 |
DL580 |
ML570 |
.1.1 |
CPU |
CPU |
System |
? |
.1.2 |
CPU |
CPU |
System |
? |
.1.3 |
IO Board |
IO Board |
System |
? |
.1.4 |
IO Board |
IO Board |
System |
? |
.1.5 |
CPU |
CPU |
IO Board |
? |
.1.6 |
CPU |
CPU |
IO Board |
? |
.1.7 |
PSU |
PSU |
- |
? |
.1.8 |
PSU |
PSU |
- |
? |
Sensor |
DL380 |
DL385 |
DL580 |
ML570 |
.1.1 |
CPU |
CPU |
CPU |
? |
.1.2 |
CPU |
IO Board |
CPU |
? |
.1.3 |
IO Board |
CPU |
CPU |
? |
.1.4 |
CPU |
CPU |
CPU |
? |
.1.5 |
PSU |
PSU |
IO Board |
? |
.1.6 |
- |
- |
Ambient |
? |
.1.7 |
- |
- |
System |
? |
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