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Ram Leak

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by dhastie

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Can anyone help me. I have an Exchange 5.5 server that a few months ago development a RAM Problem. I have spoke with MCSE Aand there advice was to apply the SP4. Which I did but did not work. What happens is during the week the information store uses about 50 or 60 additional MB's. Which I reset by stopping and starting the service. Then on Saturday nights for some reason there is a large jump of 600 to 700 MB's of RAM used by the Information Store. If I don't reset it will freeze the entire server. If anyone has experience with this please let me know.
Thanks

4 replies

by luyasu

Yes, you mention an Exchange server, but is it the only one in your site? Are you running a multi-site conf? You could review your mailboxes standard conf.? Exchange garbishing settings could need a change, and re-examine your public folders parametres?

Experience with Exchange 5.5 SPx, small changes can cause the IS to generate "dirty data" from removed objects. But this will depend on whether you have a multi-site or not.

Let me know, my time: London +1

TSP

by luyasu

What r your observations? What has changed to probably cause this "ram leak"? Do you have users synchronizing off-line? Any remote issues unresolved?

TSP

by timwalsh

Exchange, by design, will allocate ALL available physical memory to Exchange services, and release unused memory as other processes require it. This behavior you describe does not sound consistant with this.

Pardon me if this question sounds overly simplistic, but I want to make sure of terminology usage here. When you say RAM (Random Access Memory), you are referring to physical system memory and not hard disk space, correct? I ask this because I have seen some semi-technical people use the terms RAM and hard-disk space interchangably.

If you are talking about unexpected hard disk space usage, your problem is caused by something else entirely.

If in fact you are talking physical memory, how much do you have installed? You might try limiting the amount of system memory used by running the Exchange Performance Optimizer and configuring Memory Usage on the first page.

BTW, 75 mailboxes is really a drop in the bucket as far as the capabilities of Exchange.

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