Disk space graphs minimum Y value

[victor]

I've got a graph with two lines:

vfs.fs.size[/]
vfs.fs.size[/,used]

I've got the Y-axis set to "Calculate" and have applied this to all of my hosts. On most hosts, the minimum Y value is 0 bytes, which is exactly what I want because it represents an accurate view of the space consumed in relationship to the total. However, on certain hosts, the minimum Y value is anywhere from 50Gb to 110GB (the max disk space on my machines range from 250gb to 1TB).

Is there some way to force the minimum value to 0?

[victor]

This is what I'm talking about. The minimum Y value is 111GB, which is highly misleading. There has to be someone out there who has had this same issue.

[nelsonab]

Ya... The only way to do this is to set the graph axis to fixed unfortunately.

[Aly]

In ZBX 1.6.x there is such calculation type. MAX y - calculated, MIN y - 0.

[arli]

As a workaround in older version of zabbix you could search for function calculateMinY in /include/classes/graph.inc.php and disable Y axis calculation by adding line that returns 0:

   if($this->yaxistype==GRAPH_YAXIS_TYPE_FIXED)
   {
    return $this->yaxismin;
   }
   else
   {
+++    return 0; 

I'm having strange results with Calculated [Min=0] in 1.6

Most of the times the Y axis is calculated correctly, but in case of windows disk graphs it looks like this

[Aly]

As I remember, there was incorrect calculation with big values. It's fixed and as I remember I gave a patch to this, try searching the forum. You may also try nightly build of pre 1.6.1, it contains the fix.

[arli]

Just downloaded the 1.6.1 nightly build and now all the graphs are calculated correctly. Thanks a lot