LKBEN10926: Limiting Exchange 2007 / 2010 Database Cache

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LKB | Created: 02/04/2020 | Version: 0 | Language: EN | Rating: 0 | Outdated: False | Marked for deletion: False

Author: Wim Peeters - Keskon GmbH & Co. KG

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

About the Author

Wim Peeters is electronics engineer with an additional master in IT and over 30 years of experience including time spent in support, development, consulting, training and database administration. Wim has worked with SQL Server since version 6.5. He has developed in C/C++, Java and C# on Windows and Linux in different European countries and different European languages. He writes knowledge base articles to solve IT problems and publishes them on the Lubby Knowledge Platform where he is one of the most important contributors and the main developer.

Disclaimer:

The information provided in this document is intended for your information only. Lubby makes no claims to the validity of this information. Use of this information is at own risk!