Slow OWA on Exchange 2003

[adamf]

We've recently moved Exchange to a new server and it's been working fine for the past week except the fact that OWA in slow to do anything.

 

The server spec is: 2x Quad-Core Xeon 2GHZ, 4GB RAM, 4x 300GB SAS drives. OS is Server 2003 Std R2 with SP2, Exchange 2003 SP2.

 

The old server was a DC (it's still part of the organistion and AD) but it's not online and quite a bit lower in spec.

 

I'm using the /3GB in the boot.ini

 

Any suggestions as to what is causing the slowness?

[sahmeepee]

Have you tried running ExchBPA? Might be worth a go...

 

http://technet.microsoft.com/en-us/exchange/bb288481.aspx

 

The other thing that springs to mind is that Echange is very fussy about DCs and GCs. If they disappear or get demoted to member servers it can take it a while or even a reboot to get itself back in order.

[adamf]

I haven't removed the DC yet (I read something on msexchange.org about leaving it offline to iron out any problems). We have 2 GCs already.

 

I'm wondering if the old servers presence as a DC (all be it offline) is casuing some sort of problem.

[zag]

Domain controller + Exchange on the same server is a definite no no, very bad idea!

 

That is probably the cause of your problems.

 

Just out of interest have you tried shutting it down yet? Might take a while

 

EDIT: just read your post again maybe I mis-understood. Have you looked at the global catalogue server, is exchange pointing towards it? Also maybe look at the authentication in IIS on the exchange server, try anonymous plain text authentication.