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Tahir2008

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Exchange 2010 using up 22gb memory.

Hi,

We currently have a new server deployed last weekend running Windows Server 2008 R2 with Exchange 2010. The server has 32GB of RAM installed. Our clients have been reporting that the new server is slower than the previous, after investigating all i can see that may be a possible issue for performance is that store.exe is using 22GB of RAM. Is there any way to prevent this from using all this ram, its kind of weird and is causing performance issues.

Any help would be appreciated.
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Alan Hardisty
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The more RAM the box is using for the store the speed should thoericly be faster.
The slow speeds your client is reporting could be related to other factors. May the whole exchange layout needs to be considered not just the mail store. Such as maybe the mail store could be split in to smaller databases stored on different servers or disks or even a DAG could be considered to spread the load. How many Clients & Client Access servers. Also the maximum size of an single mailbox and if Outlook Cache is enabled/disabled. These are all factors in exchange 'speed' to the client.
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Tahir2008

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Just been to the client to see the slow speeds they discuss, i think this is due to a small 5 port netgear gigabit switch, not the exchange store or memeory. I will be swapping it out tonight to see if the performance increases. I also think that the folder redirection is causing a problem as the delay they are reffering too is adding attachments etc in emails, or it could be a combination of the netgear 5 port switch and folder redirection causing heavy network traffic and delays.
A likley option. I would also check that that switch isnt part of a larger collection of linked small switchs as the link speed to any single port is decrease by the number of connections to a single uplink. Best option of course is to have all PC's linked to a single switch or switch stack to remove uplink bottle necks. May want to look at running a file transfer speed test on one of the PC's on this small switch and see what the max through put is. It might reveale a bottle neck you are unaware of.
Something else to check is the uplink from the Small switch to your main switch/switch stack 1gb or less.
Do you know of any good file/network speed test applications i can run, the more simple the better :) dont want to spend a lot of time learning a new program if you know what i mean?
Well if your EU pc is Windows 7 it helps as give alot more info in a normal transfer window or you can open the monitor from task manager.
Transfering a large file such as a ISO 2GB + would give you a good idea of speed. Its just a rough test. If the file takes seconds or min or even hours. Then try it from a different PC that doesnt have the slowness. If the problem is isolated to certian pc's
Even if only windows XP task man will show a rough % of total throughput. Which you can then work out from the link rate of the LAN card.
Thanks ill give that a try. I have another utility somewhere which generates packets in a server / client setup allowing me to see the changes in link speed in the network. Ill give that a try too.
This question has been classified as abandoned and is being closed as part of the Cleanup Program.  See my comment at the end of the question for more details.