net-snmp & HOST-RESOURCES-MIB::hrStorage

Hi - hoping someone can help me with an issue I'm having with the above.
I'm using snmp via a Cacti server to query disk usage on a client with a
21Tb partition defined - yet I seem to get the disk size incorrectly
reported. I get the same result when querying the server locally.
Platform details are:

 

Centos 5.5 x86_64

Kernel 2.6.18-194.11.1.el5

/usr/sbin/snmpd -v

NET-SNMP version:  5.3.2.2

 

The partition in question is 21Tb in size and below is the output from
an snmpwalk, I'm basically after some details of how I can track down
the issue - is it an issue with net-snmp?

 

HOST-RESOURCES-MIB::hrStorageIndex.5 = INTEGER: 5

HOST-RESOURCES-MIB::hrStorageType.5 = OID:
HOST-RESOURCES-TYPES::hrStorageFixedDisk

HOST-RESOURCES-MIB::hrStorageDescr.5 = STRING: /data

HOST-RESOURCES-MIB::hrStorageAllocationUnits.5 = INTEGER: 4096 Bytes

HOST-RESOURCES-MIB::hrStorageSize.5 = INTEGER: 1074233344

HOST-RESOURCES-MIB::hrStorageUsed.5 = INTEGER: 93350

 

df -h

Filesystem            Size  Used Avail Use% Mounted on

/dev/sdb               21T  365M   21T   1% /data

 

When I view the details of this in Cacti it's telling me the size of
/data is only 4Tb. No other devices have this problem, but then again
none of them have drives that are over 2 Tb.

 

Any help in resolving this would be greatly appreciated.

 

 

Thanks.

 

Julian Grunnell
Unix Sys Admin
Webfusion Limited.

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