[Bug 865268] [NEW] snmpd reports wrong value for hrStorageSize

Brian Candler 865268 at bugs.launchpad.net
Mon Oct 3 11:54:14 UTC 2011 

Public bug reported:

Look at hrStorageSize.34 in the below table. Notice that:
(1) it's smaller than hrStorageUsed.34, so it can't possibly be right
(2) it's the same as the previous row, hrStorageSize.33

$ snmpwalk -c public -v2c <hostname> hrStorageTable
HOST-RESOURCES-MIB::hrStorageIndex.1 = INTEGER: 1
HOST-RESOURCES-MIB::hrStorageIndex.3 = INTEGER: 3
HOST-RESOURCES-MIB::hrStorageIndex.6 = INTEGER: 6
HOST-RESOURCES-MIB::hrStorageIndex.7 = INTEGER: 7
HOST-RESOURCES-MIB::hrStorageIndex.10 = INTEGER: 10
HOST-RESOURCES-MIB::hrStorageIndex.31 = INTEGER: 31
HOST-RESOURCES-MIB::hrStorageIndex.32 = INTEGER: 32
HOST-RESOURCES-MIB::hrStorageIndex.33 = INTEGER: 33
HOST-RESOURCES-MIB::hrStorageIndex.34 = INTEGER: 34
HOST-RESOURCES-MIB::hrStorageIndex.35 = INTEGER: 35
HOST-RESOURCES-MIB::hrStorageIndex.36 = INTEGER: 36
HOST-RESOURCES-MIB::hrStorageIndex.37 = INTEGER: 37
HOST-RESOURCES-MIB::hrStorageType.1 = OID: HOST-RESOURCES-TYPES::hrStorageRam
HOST-RESOURCES-MIB::hrStorageType.3 = OID: HOST-RESOURCES-TYPES::hrStorageVirtualMemory
HOST-RESOURCES-MIB::hrStorageType.6 = OID: HOST-RESOURCES-TYPES::hrStorageOther
HOST-RESOURCES-MIB::hrStorageType.7 = OID: HOST-RESOURCES-TYPES::hrStorageOther
HOST-RESOURCES-MIB::hrStorageType.10 = OID: HOST-RESOURCES-TYPES::hrStorageVirtualMemory
HOST-RESOURCES-MIB::hrStorageType.31 = OID: HOST-RESOURCES-TYPES::hrStorageFixedDisk
HOST-RESOURCES-MIB::hrStorageType.32 = OID: HOST-RESOURCES-TYPES::hrStorageFixedDisk
HOST-RESOURCES-MIB::hrStorageType.33 = OID: HOST-RESOURCES-TYPES::hrStorageFixedDisk
HOST-RESOURCES-MIB::hrStorageType.34 = OID: HOST-RESOURCES-TYPES::hrStorageFixedDisk
HOST-RESOURCES-MIB::hrStorageType.35 = OID: HOST-RESOURCES-TYPES::hrStorageFixedDisk
HOST-RESOURCES-MIB::hrStorageType.36 = OID: HOST-RESOURCES-TYPES::hrStorageFixedDisk
HOST-RESOURCES-MIB::hrStorageType.37 = OID: HOST-RESOURCES-TYPES::hrStorageNetworkDisk
HOST-RESOURCES-MIB::hrStorageDescr.1 = STRING: Physical memory
HOST-RESOURCES-MIB::hrStorageDescr.3 = STRING: Virtual memory
HOST-RESOURCES-MIB::hrStorageDescr.6 = STRING: Memory buffers
HOST-RESOURCES-MIB::hrStorageDescr.7 = STRING: Cached memory
HOST-RESOURCES-MIB::hrStorageDescr.10 = STRING: Swap space
HOST-RESOURCES-MIB::hrStorageDescr.31 = STRING: /
HOST-RESOURCES-MIB::hrStorageDescr.32 = STRING: /sys/fs/fuse/connections
HOST-RESOURCES-MIB::hrStorageDescr.33 = STRING: /dev
HOST-RESOURCES-MIB::hrStorageDescr.34 = STRING: /media/data
HOST-RESOURCES-MIB::hrStorageDescr.35 = STRING: /media/data2
HOST-RESOURCES-MIB::hrStorageDescr.36 = STRING: /home/tomi/.gvfs
HOST-RESOURCES-MIB::hrStorageDescr.37 = STRING: /media/monster1
HOST-RESOURCES-MIB::hrStorageAllocationUnits.1 = INTEGER: 1024 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.3 = INTEGER: 1024 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.6 = INTEGER: 1024 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.7 = INTEGER: 1024 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.10 = INTEGER: 1024 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.31 = INTEGER: 4096 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.32 = INTEGER: 4096 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.33 = INTEGER: 4096 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.34 = INTEGER: 4096 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.35 = INTEGER: 4096 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.36 = INTEGER: 0 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.37 = INTEGER: 8192 Bytes
HOST-RESOURCES-MIB::hrStorageSize.1 = INTEGER: 24732776
HOST-RESOURCES-MIB::hrStorageSize.3 = INTEGER: 49887332
HOST-RESOURCES-MIB::hrStorageSize.6 = INTEGER: 24732776
HOST-RESOURCES-MIB::hrStorageSize.7 = INTEGER: 18405520
HOST-RESOURCES-MIB::hrStorageSize.10 = INTEGER: 25154556
HOST-RESOURCES-MIB::hrStorageSize.31 = INTEGER: 116744604
HOST-RESOURCES-MIB::hrStorageSize.32 = INTEGER: 0
HOST-RESOURCES-MIB::hrStorageSize.33 = INTEGER: 3089665
HOST-RESOURCES-MIB::hrStorageSize.34 = INTEGER: 3089665
HOST-RESOURCES-MIB::hrStorageSize.35 = INTEGER: 388630628
HOST-RESOURCES-MIB::hrStorageSize.36 = INTEGER: 0
HOST-RESOURCES-MIB::hrStorageSize.37 = INTEGER: 1763671548
HOST-RESOURCES-MIB::hrStorageUsed.1 = INTEGER: 21206848
HOST-RESOURCES-MIB::hrStorageUsed.3 = INTEGER: 21266872
HOST-RESOURCES-MIB::hrStorageUsed.6 = INTEGER: 99780
HOST-RESOURCES-MIB::hrStorageUsed.7 = INTEGER: 18405520
HOST-RESOURCES-MIB::hrStorageUsed.10 = INTEGER: 60024
HOST-RESOURCES-MIB::hrStorageUsed.31 = INTEGER: 6489199
HOST-RESOURCES-MIB::hrStorageUsed.32 = INTEGER: 0
HOST-RESOURCES-MIB::hrStorageUsed.33 = INTEGER: 162
HOST-RESOURCES-MIB::hrStorageUsed.34 = INTEGER: 53617360
HOST-RESOURCES-MIB::hrStorageUsed.35 = INTEGER: 290113170
HOST-RESOURCES-MIB::hrStorageUsed.36 = INTEGER: 0
HOST-RESOURCES-MIB::hrStorageUsed.37 = INTEGER: 1163419544
brian at monitoring:~$ snmpwalk -c public -v2c recording1 hrStorageTable
HOST-RESOURCES-MIB::hrStorageIndex.1 = INTEGER: 1
HOST-RESOURCES-MIB::hrStorageIndex.3 = INTEGER: 3
HOST-RESOURCES-MIB::hrStorageIndex.6 = INTEGER: 6
HOST-RESOURCES-MIB::hrStorageIndex.7 = INTEGER: 7
HOST-RESOURCES-MIB::hrStorageIndex.10 = INTEGER: 10
HOST-RESOURCES-MIB::hrStorageIndex.31 = INTEGER: 31
HOST-RESOURCES-MIB::hrStorageIndex.32 = INTEGER: 32
HOST-RESOURCES-MIB::hrStorageIndex.33 = INTEGER: 33
HOST-RESOURCES-MIB::hrStorageIndex.34 = INTEGER: 34
HOST-RESOURCES-MIB::hrStorageIndex.35 = INTEGER: 35
HOST-RESOURCES-MIB::hrStorageIndex.36 = INTEGER: 36
HOST-RESOURCES-MIB::hrStorageIndex.37 = INTEGER: 37
HOST-RESOURCES-MIB::hrStorageType.1 = OID: HOST-RESOURCES-TYPES::hrStorageRam
HOST-RESOURCES-MIB::hrStorageType.3 = OID: HOST-RESOURCES-TYPES::hrStorageVirtualMemory
HOST-RESOURCES-MIB::hrStorageType.6 = OID: HOST-RESOURCES-TYPES::hrStorageOther
HOST-RESOURCES-MIB::hrStorageType.7 = OID: HOST-RESOURCES-TYPES::hrStorageOther
HOST-RESOURCES-MIB::hrStorageType.10 = OID: HOST-RESOURCES-TYPES::hrStorageVirtualMemory
HOST-RESOURCES-MIB::hrStorageType.31 = OID: HOST-RESOURCES-TYPES::hrStorageFixedDisk
HOST-RESOURCES-MIB::hrStorageType.32 = OID: HOST-RESOURCES-TYPES::hrStorageFixedDisk
HOST-RESOURCES-MIB::hrStorageType.33 = OID: HOST-RESOURCES-TYPES::hrStorageFixedDisk
HOST-RESOURCES-MIB::hrStorageType.34 = OID: HOST-RESOURCES-TYPES::hrStorageFixedDisk
HOST-RESOURCES-MIB::hrStorageType.35 = OID: HOST-RESOURCES-TYPES::hrStorageFixedDisk
HOST-RESOURCES-MIB::hrStorageType.36 = OID: HOST-RESOURCES-TYPES::hrStorageFixedDisk
HOST-RESOURCES-MIB::hrStorageType.37 = OID: HOST-RESOURCES-TYPES::hrStorageNetworkDisk
HOST-RESOURCES-MIB::hrStorageDescr.1 = STRING: Physical memory
HOST-RESOURCES-MIB::hrStorageDescr.3 = STRING: Virtual memory
HOST-RESOURCES-MIB::hrStorageDescr.6 = STRING: Memory buffers
HOST-RESOURCES-MIB::hrStorageDescr.7 = STRING: Cached memory
HOST-RESOURCES-MIB::hrStorageDescr.10 = STRING: Swap space
HOST-RESOURCES-MIB::hrStorageDescr.31 = STRING: /
HOST-RESOURCES-MIB::hrStorageDescr.32 = STRING: /sys/fs/fuse/connections
HOST-RESOURCES-MIB::hrStorageDescr.33 = STRING: /dev
HOST-RESOURCES-MIB::hrStorageDescr.34 = STRING: /media/data
HOST-RESOURCES-MIB::hrStorageDescr.35 = STRING: /media/data2
HOST-RESOURCES-MIB::hrStorageDescr.36 = STRING: /home/tomi/.gvfs
HOST-RESOURCES-MIB::hrStorageDescr.37 = STRING: /media/monster1
HOST-RESOURCES-MIB::hrStorageAllocationUnits.1 = INTEGER: 1024 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.3 = INTEGER: 1024 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.6 = INTEGER: 1024 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.7 = INTEGER: 1024 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.10 = INTEGER: 1024 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.31 = INTEGER: 4096 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.32 = INTEGER: 4096 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.33 = INTEGER: 4096 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.34 = INTEGER: 4096 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.35 = INTEGER: 4096 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.36 = INTEGER: 0 Bytes
HOST-RESOURCES-MIB::hrStorageAllocationUnits.37 = INTEGER: 8192 Bytes
HOST-RESOURCES-MIB::hrStorageSize.1 = INTEGER: 24732776
HOST-RESOURCES-MIB::hrStorageSize.3 = INTEGER: 49887332
HOST-RESOURCES-MIB::hrStorageSize.6 = INTEGER: 24732776
HOST-RESOURCES-MIB::hrStorageSize.7 = INTEGER: 18670248
HOST-RESOURCES-MIB::hrStorageSize.10 = INTEGER: 25154556
HOST-RESOURCES-MIB::hrStorageSize.31 = INTEGER: 116744604
HOST-RESOURCES-MIB::hrStorageSize.32 = INTEGER: 0
HOST-RESOURCES-MIB::hrStorageSize.33 = INTEGER: 3089665
HOST-RESOURCES-MIB::hrStorageSize.34 = INTEGER: 3089665    <<<<< NOTE
HOST-RESOURCES-MIB::hrStorageSize.35 = INTEGER: 388630628
HOST-RESOURCES-MIB::hrStorageSize.36 = INTEGER: 0
HOST-RESOURCES-MIB::hrStorageSize.37 = INTEGER: 1763671548
HOST-RESOURCES-MIB::hrStorageUsed.1 = INTEGER: 21959984
HOST-RESOURCES-MIB::hrStorageUsed.3 = INTEGER: 22020008
HOST-RESOURCES-MIB::hrStorageUsed.6 = INTEGER: 99856
HOST-RESOURCES-MIB::hrStorageUsed.7 = INTEGER: 18670248
HOST-RESOURCES-MIB::hrStorageUsed.10 = INTEGER: 60024
HOST-RESOURCES-MIB::hrStorageUsed.31 = INTEGER: 6534349
HOST-RESOURCES-MIB::hrStorageUsed.32 = INTEGER: 0
HOST-RESOURCES-MIB::hrStorageUsed.33 = INTEGER: 162
HOST-RESOURCES-MIB::hrStorageUsed.34 = INTEGER: 53617360     <<<<< NOTE
HOST-RESOURCES-MIB::hrStorageUsed.35 = INTEGER: 290116334
HOST-RESOURCES-MIB::hrStorageUsed.36 = INTEGER: 0
HOST-RESOURCES-MIB::hrStorageUsed.37 = INTEGER: 1163421564

For comparison, here's what df -k shows on the host:

root at r1:/var/log# df -k
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda1            466978416  24961836 418295416   6% /
none                  12358660       648  12358012   1% /dev
none                  12366388       248  12366140   1% /dev/shm
none                  12366388       404  12365984   1% /var/run
none                  12366388         0  12366388   0% /var/lock
/dev/sdb1            15747966392 214469440 14733545784   2% /media/data
/dev/sdb2            1554522512 1160578276 314979008  79% /media/data2
192.168.5.119:/109TB-NFS_shared
                     117188587488 9307643872 107880943616   8% /media/monster1

The partition in question is /media/data.

The value for KB used matches with hrStorageUsed (214469440 / 4 =
53617360), but the value for hrStorageSize should be 14733545784 / 4 =
3683386446

Since this value is between 2^31 and 2^32, it's possible that it is
being miscalculated as a negative value. But even then, hrStorageSize
should not just show an arbitrary value which happens to be the
hrStorageSize of the previous partition.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: snmpd 5.4.3~dfsg-2ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-11.48-generic 2.6.38.8
Uname: Linux 2.6.38-11-generic x86_64
Architecture: amd64
Date: Mon Oct  3 12:45:06 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SNMPVersion:
 NET-SNMP version:  5.4.3
 Web:               http://www.net-snmp.org/
 Email:             net-snmp-coders at lists.sourceforge.net
SourcePackage: net-snmp
SyslogSnmptrapd:
 
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.snmp.snmpd.conf: 2011-09-26T10:37:39.583350

** Affects: net-snmp (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug natty

-- 
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to net-snmp in Ubuntu.
https://bugs.launchpad.net/bugs/865268

Title:
  snmpd reports wrong value for hrStorageSize

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/net-snmp/+bug/865268/+subscriptions

More information about the Ubuntu-server-bugs mailing list