On Friday 07 November 2008, Martin Flemming wrote:
Great Stuff, Stef !
... three more questions,
a) is it possible to declare some excludes
or something for only active-disks ?
e.g. md0 , the most of my machines have not software-mirror
but some .....
or
/dev/hdd or /dev/cdrom .. in my graph's
it appears as hdd but that's the cdrom and it's empty ....
Of course, the script was more a proof of concept. I had the iostat numbers on aix, so it was not that hard to change it for linux.
I will update the script and add such feature.
b)
I've got three empty links in the trend=page
to iostat-disk, how could i delete them or is there a
association with a) ?
Euh, can you upload the graph somewhere so I can see it ?
c)
I've got negative KB/s on some y-axis ... hmm, why ?
Writes are negative, reads are positive. This is defined in the hobbit-graph. The numbers in the rrd file are fine.
I just saw in my script and it also collects the statistics in blocks per second. And by combining the blocks and bytes / second you can get the block size. I can add such graph definitions if anyone is interested....
Maybe I can write a howto based on this script... so anyonce can create a graph from a number.
Stef