windows 2008r2 SNMP hrStorageSize reporting wrong values
- by Giannis Nohj
I'm trying to monitor disks on windows 2008 R2 system, but I'm getting wrong values returned from hrStorageSize and hrStorageUsed for one of the 2 disks the system has. Local disk C: is returning correct values, whereas D: disk, which is an SAN disk, is reporting 32G instead of 500G.
Output of snmpwalk -v 2c -c public hostname-01 .1.3.6.1.2.1.25.2 :
HOST-RESOURCES-MIB::hrStorageDescr.1 = STRING: C:\ Label: Serial Number 7ff87ca6
HOST-RESOURCES-MIB::hrStorageDescr.2 = STRING: D:\ Label:Data Serial Number dab5b0b9
...
HOST-RESOURCES-MIB::hrStorageAllocationUnits.1 = INTEGER: 4096 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.2 = INTEGER: 4096 Bytes
...
HOST-RESOURCES-MIB::hrStorageSize.1 = INTEGER: 35834383
HOST-RESOURCES-MIB::hrStorageSize.2 = INTEGER: 7864320
...
HOST-RESOURCES-MIB::hrStorageUsed.1 = INTEGER: 32460169
HOST-RESOURCES-MIB::hrStorageUsed.2 = INTEGER: 3192302
I have calculated the first disk (C:) size as 136G, which is correct.
On the other hand, D: is calculated as 30G, where it should be 500G.
I also tried fsutil on the system and the output was correct.
Anyone have any ideas?