Nice, simple, uptime graph

[kerickson]

kerickson [http://community.zenoss.org/people/kerickson] created the discussion

"Nice, simple, uptime graph"

To view the discussion, visit: http://community.zenoss.org/message/71222#71222

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User Gomez over on gmane http://comments.gmane.org/gmane.comp.monitoring.zenoss.user/40771 posted a simple procedure to let you make graphs like this one:
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It visually shows availability as measured by the system uptime KPI, and calculates a mean availability for the time period selected. I'll document his steps here in pictures.

Create a new graph. I called mine Availability and put it the /Servers/Linux template, but this procedure will work as-is for any device that has the sysuptime counter.
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Start by defining the graph points.
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The key here is changing the line type to Not Drawn.

Next, view and edit graph details to set the legend and graph range.

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The magic comes in the RRD commands in the custom graph definition.
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These commands define an area chart based on a simple IF calculation on the uptime metric. For cut-and-paste simplicity, the commands are here:

CDEF:A=sysUpTime,UN,0,sysUpTime,0,GT,IF
VDEF:vA=A,AVERAGE
AREA:A#00bbee:System Availability
GPRINT:vA:= %0.7lf \n

I really like this one!
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[kerickson]

kerickson [http://community.zenoss.org/people/kerickson] created the discussion

"Re: Nice, simple, uptime graph"

To view the discussion, visit: http://community.zenoss.org/message/71224#71224

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You can create reports on using this same technique using the multigraph tool. Here's a sample report:

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