On 12/10/2009 04:55 PM, Andy Sautins wrote:
I have a question that I got an interesting and helpful answer for on the
IRC channel today, but thought I'd open it up to a larger group as well.
My problem is hopefully a very common problem. I'm using Ganglia for trend
graphing. We are using Ganglia 3.0.7 for convenience since RPMS are available
for CentOS 5.4 through EPEL. Everything generally works great, but Ganglia
doesn't appear to gather Disk I/O stats ( writes/sec, reads/sec, etc ) as a
metric. Some quick looking on the web seemed to confirm that ganglia doesn't
capture disk I/O stats by default, but talk about how it's generally pretty
easy to capture using gmetric.
I guess my question would be is there a common way of doing this? What do
you use? Do you find Disk I/O to be a useful/necessary metric?
Any thoughts would be much appreciated.
In the past we've used a wrapper around 'iostat -k /dev/XXX 60' to report disk io statistics to our internal reporting tools.
--Mike
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