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Host Partition Storage Free Space Alert Problem

thtech over 9 years ago

We have Virtualization Manager running in our environment and i'm having a strange issue with it. One of the alerts that comes up is in regard to Host partition storage free space. It states that if the local ESXi host partition falls below 20% free space, it will throw the alert. Great! I like that plan, however, it isn't working properly. Here is a readout from one of the hosts it's throwing the alert on. Any thoughts?

~ # df -h

Filesystem Size Used Available Use% Mounted on

VMFS-5 2.0T 984.0M 2.0T 0% /vmfs/volumes/ESXi_LUN14

VMFS-5 2.0T 307.1G 1.7T 15% /vmfs/volumes/ESXi_LUN04

VMFS-5 131.8G 971.0M 130.8G 1% /vmfs/volumes/ServerName_local

VMFS-5 2.4T 1.8T 651.7G 74% /vmfs/volumes/ESXi_LUN15

VMFS-5 2.0T 905.0G 1.1T 44% /vmfs/volumes/ESXi_LUN02

VMFS-5 2.0T 1.3T 672.5G 67% /vmfs/volumes/ESXi_LUN12

VMFS-5 2.0T 1.4T 591.7G 71% /vmfs/volumes/ESXi_LUN03

VMFS-5 2.0T 1.4T 658.6G 68% /vmfs/volumes/ESXi_LUN01

VMFS-5 2.5T 2.2T 373.0G 86% /vmfs/volumes/ESXi_LUN05

VMFS-5 2.0T 405.1G 1.6T 20% /vmfs/volumes/ESXi_LUN13

VMFS-5 2.0T 1.4T 657.1G 68% /vmfs/volumes/ESXi_LUN11

vfat 4.0G 31.5M 4.0G 1% /vmfs/volumes/GUID1

vfat 249.7M 142.3M 107.5M 57% /vmfs/volumes/GUID2

vfat 249.7M 155.6M 94.1M 62% /vmfs/volumes/GUID3

vfat 285.8M 183.4M 102.4M 64% /vmfs/volumes/GUID4

Now, as you can see, one of the LUN's is over 80% but that isn't a local host partition, the GUID1-4 and ServerName_local directories are the local storage.

Am I just viewing/interpreting this incorrectly or is something not reporting properly?

Any help is greatly appreciated!

0 HolyGuacamole over 9 years ago

The out of the box alert doesn't distinguish between local and shared shared storage. The scope of the search is
host.vol.freeSpacePercentage:[* TO 20]
If you click on the alert name, you can see the list of volumes that triggered the alert in the 'Least free space' column.
If you want to restrict the search (i.e., evaluate the alert) for certain volumes only, you can edit the Alert and change the search to something like
host.vol.freeSpacePercentage:[* TO 20] host.vol.mountPoint:*LUN*
to restrict to volumes containing the word LUN
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0 level0 over 9 years ago

Hi,
this is caused by the fact that the application started collecting more data about non-local storage since the previous version. Unfortunately, there is currently no reliable information under host.vol. that would indicate whether the volume is local or not, so I'm afraid there are only heuristic solutions similar to the one proposed by HolyGuacamole. I'm curious about why is alerting on local storage separately important to you?
Anyway, the VMan team is now aware of the issue and will consider fixing it in a future release.
Regards,
Jan
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