OpsMgr and I/O

A friend of ours, Walter Chomak, was chatting the other day about OpsMgr I/O and that he had just finished working on his performance model (not sure you ever really "finish" these things, though). The cornerstone of the model is that regardless of the number of agents, the I/O is a 85/15 split. With 85% reads, if your average disk sec/read is greater than 50-75ms, you will observe latency in the console. This will hold true for 100 agents or 6000 agents (of course, as agents increase [load], keeping those times down requires better disk subsystems.)

Walter modeled this in many sizes of environments, ranging from 500 to over 7000 agents. He has published an article on his blog, OpsMgr 2007 I/O Considerations, that you will definitely want to read. Check out http://wchomak.spaces.live.com/blog/cns!F56EFE25599555EC!610.entry.

Advertisements
This entry was posted in Tuning and Configuration. Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s