I finally have working vmware monitoring with zabbix 2.2.1 and vmware sphere 5.5 (just upgraded).
However I am getting a very odd alarm from my NFS mounts. They are reporting more disk space used than total disk space! Of course this is not really possible. The actual disk space in latest units DOES not match.
Total disk space is actually 5.45 TB shown in latest data, and used is showing 5.52 TB!
IS this vmware reporting it incorrectly, or is it zabbix interpreting the data incorrectly?
Browsing the datastore directly on the host gives expected values.
Name Capacity Free
Synology-ISOs 23589721399296 17521629032448
Synology-NFS 23589721399296 17521629032448
Example alarm.
Trigger: Free disk space is less than 20% on volume /vmfs/volumes/Synology-NFS
Trigger status: PROBLEM
Trigger severity: Warning
Trigger URL:
Item values:
1. Used disk space on /vmfs/volumes/Synology-NFS in units (snscolo.esxi101:hrStorageUsed[/vmfs/volumes/Synology-NFS]): 1.48 Gunits
2. Total disk space on /vmfs/volumes/Synology-NFS in units (snscolo.esxi101:hrStorageSize[/vmfs/volumes/Synology-NFS]): 1.46 Gunits
3. *UNKNOWN* (*UNKNOWN*:*UNKNOWN*): *UNKNOWN*
However I am getting a very odd alarm from my NFS mounts. They are reporting more disk space used than total disk space! Of course this is not really possible. The actual disk space in latest units DOES not match.
Total disk space is actually 5.45 TB shown in latest data, and used is showing 5.52 TB!
IS this vmware reporting it incorrectly, or is it zabbix interpreting the data incorrectly?
Browsing the datastore directly on the host gives expected values.
Name Capacity Free
Synology-ISOs 23589721399296 17521629032448
Synology-NFS 23589721399296 17521629032448
Example alarm.
Trigger: Free disk space is less than 20% on volume /vmfs/volumes/Synology-NFS
Trigger status: PROBLEM
Trigger severity: Warning
Trigger URL:
Item values:
1. Used disk space on /vmfs/volumes/Synology-NFS in units (snscolo.esxi101:hrStorageUsed[/vmfs/volumes/Synology-NFS]): 1.48 Gunits
2. Total disk space on /vmfs/volumes/Synology-NFS in units (snscolo.esxi101:hrStorageSize[/vmfs/volumes/Synology-NFS]): 1.46 Gunits
3. *UNKNOWN* (*UNKNOWN*:*UNKNOWN*): *UNKNOWN*