Windows DatabaseebooksStatistical Information

LWE10370 : Limiting Exchange 2007 / 2010 Database Cache

Symptom:

Exchange Information Store reserves to much memory

Cause:

This is by design

Solution:

Follow these steps:

  1. Start ADSIEDIT.msc
  2. Navigate to Configuration > Services > Microsoft Exchange > > Administrative Groups > > Servers > > InformationStore
  3. Right-click InformationStore (properties), and edit msExchESEParamCacheSizeMax. Set it it to the number of pages to maximize the Database Cache to. Note that Exchange 2007 works with 8 KB pages and Exchange 2010 with 32 KB pages!
  4. Restart the Microsoft Exchange Information Store service for the change to become effective.
The supported options:
RAM Physical Memory Database Cache Size, Mailbox Role Database Cache Size, Multiple Roles
2 GB 512 MB Unsupported
4 GB 1 GB Unsupported
8 GB 3.6 GB 2 GB
16 GB 10.4 GB 8 GB
32 GB 24.4 GB 20 GB
64 GB 53.6 GB 44 GB
128 GB 111.2 GB 92 GB

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