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Conference chefs::ms-exchange

Title:Microsoft Exchange Server
Notice:
Moderator:FLASK2::SYSTEM
Created:Fri Feb 17 1995
Last Modified:Thu Jun 05 1997
Last Successful Update:Thu Jun 05 1997
Number of topics:1099
Total number of notes:5174

993.0. "Counters monitoring delivering?" by BARNA::DSMAIL () Thu Apr 10 1997 14:18

Hi folks,

Please, can anybody give us which are the "key" counters in
performance monitor (MSExchange objects) to detect MS Exchange
performance problems, i.e. how to know where the server is 
spending time while delivering mail.

Regards,

		Jordi
T.RTitleUserPersonal
Name
DateLines
993.1OGOPW1::tunsrv2-tunnel.imc.das.dec.com::michaelwmichaelw@mail.dec.comTue Apr 15 1997 09:2046
IDEAS ONLY - I'm not a perf!

There are the canned dozen performance monitor configs, and then there's 
the EPERFMON.HLP file that had some of these descriptions.  I guessed
on what they could mean - my comments in ().

Ralph, where are you?

MTA
	WorkQueueLength - outstanding messages to process
		(consistently high numbers may indicate insufficient 
		processor capacity or indirect bottleneck like sluggish
		store access on local system)

MTA 
	MSExchangeMTA Connections object:
		Associations - how many open connections to other entities
		(excess numbers could indicate need to move users onto
		 same server that are generating most traffic?)
		Queue Length - number of items queued to other entities
		(if you can't communicate fast enough to other servers
		what is the bottleneck?)

IS
	MSExchangeDB
		Buffer I/O Queue Length - Outstanding I/Os to process
		(need some more RAM, or adjust Registry entries for 
		increased buffers beyond standard install or perfopt
		numbers)

	Average Time for Delivery - avg time last 10 msgs took to get from
		is to MTA
	Average Time for Local Delivery - avg time last 10 msgs took to
		be registered in IS and delivered to all recipients

	(If these are on the increase, might suggest need for faster
	disk subsystem and more CPU)

	Send Queue Size
	Receive Queue Size - establish baseline, then monitor for steady
		increase indicating need for hardware upgrade or move
		of some users and services to a subsequent server.