False red alerts for disk

[Patrik Nilsson]

Hi,

Running Xymon 4.3.0-0.beta2, I sometimes gets false red alerts from
disk on a few servers (One of the servers is the xymon server itself).

Usually disk status is reported green, as this:

Wed Jun 10 16:29:17 CEST 2009 - Filesystems OK

Filesystem         1024-blocks      Used Available Capacity Mounted on
/dev/sda1            204603376   1616748 192593380       1% /

But occasionally, I get red alerts, like this:

- Filesystems NOT ok

red 192593256       1% / (1616872% used) has reached the PANIC level (95%)

Filesystem         1024-blocks
Use] Available Capacity Mounted on
/dev/sda1            204603376   1616872 192593256       1% /

Somehow the parsing of the client data doesn't work right, resulting
the disk blocks being interpreted as percent used.

The corresponding df part in the actual client report looks like this:

 [df]
Filesystem         1024-blocks      Used Available Capacity Mounted on
/dev/sda1            204603376   1616872 192593256       1% /


On another server, the false red alert looks like this:
Wed Jun 10 15:51:53 CEST 2009 - Filesystems NOT ok

red 44% / (2778580% used) has reached the PANIC level (95%)
red 6% /home (2167204% used) has reached the PANIC level (95%)

Filesystem         1
24-]locks      Used Available Capacity Mounted on
/dev/xvda2             5162828   2121988   2778580      44% /
/dev/xvda3             24
7244  ] 136744   2167204       6% /home

While it usually looks like this:
 Wed Jun 10 15:56:54 CEST 2009 - Filesystems OK

Filesystem         1024-blocks      Used Available Capacity Mounted on
/dev/xvda2             5162828   2122012   2778556      44% /
/dev/xvda3             2427244    136784   2167164       6% /home


Slightly different, but once again, blocks used being interpreted as
percentage used.

Anyone has an idea of what might be causing this?

Thanks,

Patrik Nilsson