[Nagiosplug-help] Snmp check disk question

[Pietro Bandera]

Hi all

I'm using snmp in order to take a look on the many devices/software i
have on my lan/wan and i need to know a thing:

To control if a disk is broken or not i have found two ways...one is
perfect the other one ...i need help

1) the perfect one:

On the compaq server i installed the compaq agents and then ask them the
"state" of the disk using the correct snmp OID 

2) the unsure one:

On all the others server (IBM, SUN, BULL, etc...) i have, i can only
control the disk using the standard HOST-RESOURCES-MIB and by the OID
host.hrDevice.hrDeviceTable.hrDeviceEntry.hrDeviceStatus."number of the
device i want to check"

But by this OID i can't check the disk itself i can only check the array
device!...so

What i need to know is: if a disk of the array fails, does the
host.hrDevice.hrDeviceTable.hrDeviceEntry.hrDeviceStatus."number of the
array device" become warning(3) or not???????

If it doesn't do you know a better way to check the status of a disk!
(fail or run)

Thanks all

Pietro