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95% of Memory Used (store.exe)

I have two Virtual  Exchange Servers;
One on 1 Active Node and the other on the other node. The remaining two nodes are the passive nodes.

When verifying total memory usage I notice that 95% of the memory is used.

All these servers have 4GB memory. They have also been optimised by following the MS exchange optimisation KB article.

I am considering adding another 4GB per server. Will exchange access all of this memory or would I be wasting my time?
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Vishal Breed
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arthursc

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Memory usage breakdown:
Store.exe 1.5Gb .
AntigenRealtime.exe V9 500mb
AntigenInternet.exe 100Mb

with all the other processes and the above th total mem usage is 3.9GB.

As exchange is only using 1.5 and appears to release memory as it should add another 4Gb will be allocated to the OS????


Hi
Thanks for the replies. All the documents you guys have suggested I have followed.

Exchange seems ok with the store memory. The remaining memory is used by the OS.
So can I add more memory for the OS?
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Hi Sembee,

I was rather hoping you would reply. I agree with not adding memory now. The store is only using 1.5gb and is fairly consistant.

Performance wise, the server seem ok. Quest spotlight on Exchange screams that there is x% of memory free. I would ignore this but want to be sure that exchange is running happily which I think it is and the OS is just doing it's job.

I am running ExbA now to see what comes out of it.

Do have experience of Antigen V9 on exchange in a cluster and memory usage?

regards
Colin.
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Thanks for the points - glad to have been of help.

Cheers
Steve