While off topic, but how do you guys measure your IO to disk?

--Pat

-----Original Message----- From: Gildas Le Nadan [mailto:gn1 at sanger.ac.uk] Sent: Tuesday, October 31, 2006 11:49 AM To: hobbit at hswn.dk Subject: Re: [hobbit] New Hobbit stuff: Scalability and H/A work

Henrik Stoerner wrote:

A couple of weeks ago, I was asked if our Hobbit system at work could handle monitoring of one more customer. Of course, I said - no problem. Well, there was one gotcha: This customer has 1100+ servers that need to be monitored. Which means my Hobbit installation is about to double in the number of hosts monitored. Hmm ...

This will be interesting to watch. I am fairly confident that Hobbit can handle it, with one exception: The disks on my Hobbit server will be overloaded. It already spends about 50% of it's time in I/O wait, so doubling the number of hosts with cpu/memory/disk etc. graphs will probably crash it.

Strange that I/O seem to be an issue for you. What kind of system do you run the hobbit server on?

I have ~3300 rrd files updated here on a blade with an old 40 Gig 5400 2,5" hard drive and it is almost idle.

Cheers, Gildas

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