UPtime or availablility of a platform and of a server

[hypermike]

I would like to monitor the uptime for a platform (like linux box) ,but DONT quite understand how uptime works. How do I monitor a "platform "for uptime . If I use the agent and show its uptime ,that may NOT be the same as the uptime for a platform if for some reason the agent didnt start.

In the same frame of mind I would like to monitor the uptime as a % for a web site. What is the best way to do this ?? What metric should I monitor ??? again if the agent goes down and does NOT start up is the UPTIME % for the web site going to be affected and show more down time if the agent is NOT running .. It seems everything depends for accuracy on the agent running .


Also:

1, HOw long is data saved for monitoring uptime or
web access . Is it configurable ?? \
How do I know how much disk space I have left or room in the internal postsql datbase ?? Where do I look for this ??

Message was edited by: hypermike

[admin]

The HQ server considers an agent not starting as the platform being
unavailable. The unavailability of a platform is determined by the
fact that an agent does not report available for it. Therefore,
what's important is the HQ server be running without interruption to
ensure that our "backfiller" process fills in the missing available
data points as unavailable to give you an accurate accounting of the
percentage of time that a platform is available.

To monitor the availability of a website, you can set up an HTTP
Platform Service by manually creating a new Platform Service for any
platform in your infrastructure. The HTTP service has an
availability metric already, so there's not too much to it. It does
depend in the proper functioning of the HQ agent to collect
availability, and would be considered unavailable if the agent was
not running.

Charles

[hypermike]

Thank you for replying:

I dont understand :When you say :

Therefore,
what's important is the HQ server be running without interruption to
ensure that our "backfiller" process fills in the missing available
data points as unavailable to give you an accurate accounting of the
percentage of time that a platform is available. If the hyperic client is down BUT the server up
the availability of a platform will show as DOWN . Which would be the case if the platformw as up but the client on it down.

One more big question :
HOW long is data saved by the hyperic server ??
Is this configurable ???
HOw do I check space in the database or disk hyp[eric server is using ??

[admin · Accepted solution]

If the client (agent) was down, then the server will consider the platform as being down.

It's a little bit tricky to answer your question regarding how long the data is being kept. We compress the data and store avg/min/max over windows into different tables, each is set for different window size and range. Overall, the oldest data in HQ will be purged after 1 year. This is configurable in the database.

You can check the space by monitoring the database used by HQ :-).

[hypermike]

Thanks for your info...

[staceyeschneide]

Hey Hypermike! You ask a lot of big questions on the forums. It would be great if you gave back to the community and dish out some points to the folks who helped you along the way. Thanks for using Hyperic!