SNMP >4GB memory values in linux

[doggammit76]

Hi folks

Have an issue here, was wondering if anyone has faced it. If so, how to fix it?

I have a linux box(suse 9 ent. server) which is fitted with 16GB of ram. Problem I have is that the SNMP value reports that it only has 4GB of ram.

I did a "walk" with Ipmonitor and value reported is 4194303. The value of "free" command on the box reports 16569208.

Any thoughts would be appreciated.

 

[davidpaul1210]

I have found that the HOST mib has the value as integer which causing false reading, overflow of integer. I have been using the UCD mib, .1.3.6.1.4.1.2021, to get CPU and Memory usage. This contains the Memory in kBytes.

 

[doggammit76]

hi davidpaul

Appreciate the response.

I guess it is what I used too that was reflecting the flawed RAM value.

Name Oid Value
memIndex.0 1.3.6.1.4.1.2021.4.1.0 0
memErrorName.0 1.3.6.1.4.1.2021.4.2.0 swap
memTotalSwap.0 1.3.6.1.4.1.2021.4.3.0 4192944
memAvailSwap.0 1.3.6.1.4.1.2021.4.4.0 4192784
memTotalReal.0 1.3.6.1.4.1.2021.4.5.0 4149144
memAvailReal.0 1.3.6.1.4.1.2021.4.6.0 18760
memTotalFree.0 1.3.6.1.4.1.2021.4.11.0 4211544
memMinimumSwap.0 1.3.6.1.4.1.2021.4.12.0 16000
memShared.0 1.3.6.1.4.1.2021.4.13.0 0
memBuffer.0 1.3.6.1.4.1.2021.4.14.0 29152
memCached.0 1.3.6.1.4.1.2021.4.15.0 3721088
memSwapError.0 1.3.6.1.4.1.2021.4.100.0 0
memSwapErrorMsg.0 1.3.6.1.4.1.2021.4.101.0

Thank you.

 

[davidpaul1210]

There is also the HOST-RESOURCES-MIB::hrStorageAllocationUnits value which will give you the storage unit size ( 256 bytes, 2048 bytes, etc).
You may have to adjust the hrStorageSize and hrStorageUsed value according to the hrStorageAllocationUnits