I'd look into some of the various perfmon for the hardware. The problems may be hardware related (disk io, memory io, etc) could be network latency or it could be 3rd party applications running against your servers. In the last few months, we've seen them all. Back ups running during business hours, anti-virus running against the server, hard drives failing or bad memory chips, causing extra cycles. The perfmon traces found high numbers of latent rpcs connections lately.
On Mon, Oct 18, 2010 at 3:42 PM, Steve Hart <[email protected]> wrote: > Exchange 2007 > > > > We’ve had two instances in the last month, where our Exchange server > suddenly got glacially slow. Outlook was timing out, OWA wouldn’t respond. > Logging into the server took about 3 minutes and shutting down took about > 15. > > > > Rebooting solved the problem (probably temporarily) each time. Nothing > obvious in event viewer. Task Manager showed real low CPU activity 1-2%, > normal RAM use. > > > > Ideas on where to look? > > > > > > --- > To manage subscriptions click here: > http://lyris.sunbelt-software.com/read/my_forums/ > or send an email to [email protected] > with the body: unsubscribe exchangelist > --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe exchangelist
