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What services need to be running in our Exchange 5.5 Server?

I have noticed that our server is running slower, so I started the Windows NT Taskmanager and processes are running:

Image Name    PID   CPU   CPU TIME
EMSMTA.EXE   403    30       0:02:11
SERVICES.EXE  45    25      0:06:16
DXA.EXE            559    16      0:01:03
SYSTEM                 2    13      0:05:20
DSAMAIN.EXE  336    11      0:01:05
RPCSS.EXE        74    02      0:00:14
 
I tried restarting the server, but it does not help, maybe for a while, but then slows to a crawl again.
Has anyone had any similar experiences? or Do you have any suggestions?
Thank you in advance for your help and comments.
LuisP
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LuisP
Asked:
LuisP
1 Solution
 
geoffrynCommented:
What OS? NT 4.0? 2K?  How much RAM and what CPU?

Are you using directory sync for something?  Is this the only Exchange server in the site?
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bvogelCommented:
The REQUIRED Exchange services are:

Directory Service
MTA
Information Store
System Attendant

Of course, you could (and probably do) have more running for the other Exchange services (eg. IMS, Key Management, etc.).  There's also the required NT services that need to be running.

When you say 'running slower', how are you measuring this?  Response from the console, network, mail?
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LuisPAuthor Commented:
geoffryn
What OS?: I am running NT 4.0 Server.
How much RAM: 640mb
and what CPU?: Single Intel PIII Xeon 500MHZ

Are you using directory sync for something?: I do not know, What do you use directory sych for?.

Is this the only Exchange server in the site?: Yes, this is the only Exchange server in the site.
 
Thank you
LuisP
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LuisPAuthor Commented:
bvogel,

When you say 'running slower', how are you measuring this?  Response from the console, network, mail?

I have visually looked at the screen and when the screen saver is running (flying window) it is very slow. Also in the Taskmanager you can see that the CPU usage is 98%.

Thank you
LuisP
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bvogelCommented:
Looking at the above table that you put there, it doesn't show as well as I'd like to see what process it is that is taking up most of the 98% of the CPU.  Which one do you think is is?
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LuisPAuthor Commented:
bvogel,
If you add them all it comes out to about 97%, the process that it is taking most of the processor time is ESMTA.EXE which is in the C:\Exchangesvr\bin. I do not know what EMSMTA stands for.
Thank you,
LuisP
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bvogelCommented:
That's the MTA (message transfer agent) of Exchange.  Try re-applying Exchange 5.5 SP4.  I've had this issue before as well.  Tell me if that helps.  If it does, make sure you apply any post SP4 hotfixes.
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LuisPAuthor Commented:
bvogel,
where do yo get that service pack?
Thank you
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bvogelCommented:
I have TechNet, and it's on one of the cd's.

If you don't have TechNet, check out this link on Microsoft's site to get the Service Pack:

http://support.microsoft.com/default.aspx?scid=kb;en-us;Q191014

That help?
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24hrexchangeCommented:
Check the activity on the server it appears that you don't have enough memory and CPU proseccing power. be advised that exchange use all available memory. you might also want to put a limit on the size of the messages that goes out and comes through the MTA. Ensure that you have your IS store on a drive with sufficient HD space for better performance.If not you can run performance optimizer to place these folders on an apropiate drive. also ensure that you don't have any disabled accounts thats still in the DL thats generating a lot of kick backs, also apply SP4 and other post hotfixes. last but not least you may want to run dual or quad procs. this will surely solve your problem.
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LuisPAuthor Commented:
I am sorry 24hrexchange, but I need to reject your answer as it does not give me enough detail about how to solve my problem. Thank you for trying to help me, I appreciate it very much.
LuisP
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LuisPAuthor Commented:
Thank you bvogel, I think the server was running more services than it needed.
Currently it is running:

Microsoft Exchange Directory
Microsoft Exchange Information Store
Microsoft Exchange Internet Mail Service
Microsoft Exchange Message Transfer Agent
Microsoft Exchange System Attendant
Microsoft NNTP Service
Microsoft SMNTP Service

Not running:

Microsoft Exchange Directory Synchronization
Microsoft Exchange Event Service

These last two are set to Manual Startup.

Is this OK, Is it what we would want to run Exchange with?
Thank you.
LuisP
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bvogelCommented:
The only one I see there that is a MAYBE is the NNTP service.  Do you run an Internet Mail Server on your machine?  If not, you need to uninstall (or stop) that service.  Other than that, you do have all the required services running.
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