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Exchange 2016 -- MEMORY usage at 100% ?

Someone told me Exchange 2016 is setup to use "All available memory", therefore my Exchange Server's Windows Server 2016 TASK MANAGER will always show 100% memory use of the 128GB I have.

1. Is that true ?
2. If not, how can I get TASK MANAGER to show me the current MEMORY Exchange 2016 is using ?
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Seth Simmons
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Is this the same one that has SQL on it?

Exchange and SQL are memory hogs and will consume as much memory as being made available.
Exchange has Exchange DB (edb file). I do not think there is SQL somewhere.

Can I ask how many mailboxes do you have? 128 GB RAM is big number

https://blogs.technet.microsoft.com/exchange/2015/10/12/the-exchange-2016-preferred-architecture/
If I had 0.02 for every time I've been asked this 'post-migration' :)

Exchange Store.exe Taking 99 – 100% Physical Memory

Pete
DP320, the person asked two separate questions one dealing with SQL emory 100% and one for exchange.