Extensible Storage Engine ESE Heaps | Microsoft 1 specification

Chapter 2: Capacity and Availability Management 29

Extensible Storage Engine (ESE) Heaps

When Exchange 2000 is installed on servers with more than four processors, you might notice high virtual memory usage by the Extensible Storage Engine (ESE) multi-heap. This can lead to performance problems, especially when the server has more than one GB of memory, and many databases and storage groups have been configured. It is recommended that you add the following registry parameter to all servers with more than four processors:

Location:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ESE98\Global\OS\Memory
Parameter:	MPHeap parallelism (REG_SZ)

Default setting:	(Doesn’t exist) = Parallelism set to four times the number of processors
	installed.

Recommended	For up to four processors, take no action. If the server has four or more
setting:	processors and has the maximum number of storage groups and MDBs, set
	the value to “0.” When set to zero, the parallelism is set to three plus the
	number of processors on the computer. For example, on eight-processor
	computers, it is recommended that this registry key be set to “11.”

Note: You must restart the Exchange information store process after the preceding registry parameter has been changed.

Store-Database Cache Size

Exchange 2000 is configured with a hard-coded maximum store-database cache size. This default value is 900 MB. On servers with more than 2 GB of memory, it can be beneficial to increase the size of this cache. Due to virtual address space limitations, this value should never be set higher than 1200 MB.

Note: The 900-MB limit is in place to ensure that the store process always has ample virtual address (memory) from which to allocate. Increasing this value too much can lead to system instability. For more information regarding virtual address space, see Knowledge Base article

Q266096 available at: http://support.microsoft.com/support/kb/articles/Q266/0/96.ASP?LN=EN- US&SD=gn&FR=0&qry=Q266096&rnk=1&src=DHCS_MSPSS_gn_SRCH&SPR=MSALL

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Microsoft 1 manual Extensible Storage Engine ESE Heaps, Store-Database Cache Size

Contents

Version Exchange 2000 Operations Guide Isbn Contents Enterprise Monitoring Change and Configuration Management Support ProtectionGlossary Page Key Authors Content LeadReviewers ViiPage Microsoft Operations Framework MOF Introduction SLA Efficiency, Continuity, and Security How to Use This Guide Efficiency Continuity Capacity and Availability Management Chapter Outlines Protection Planning and Deployment Features Service Level Agreements Performance Recovery Related Topics SummaryPage Capacity and Availability Management Chapter Sections Capacity Management Capacity and Availability Management Microsoft Exchange 2000 Operations Version Availability Management Service Hours Minimizing System Failures Service Availability Decreasing Single Points of Failure Increasing the Reliability of Exchange Minimizing System Recovery Time Performance Tuning Making Changes to the Registry No Performance Optimizer Optimizable Features Tuning the Message Transfer Agent MTA Tuning ConsiderationsUpgrading from Exchange 5.5 to Exchange Mailroot Directory Location Tuning Smtp Transport Smtp File Handles Hkeylocal Online Store Maintenance Store and ESE TuningActive Directory Checking Message Deletion and Online Defragmentation Online Backups First Storage Group Choosing the Correct Maintenance Strategy Store-Database Cache Size Extensible Storage Engine ESE Heaps Microsoft Exchange 2000 Operations Version Log Buffers Tuning Active Directory Integration Type SET Maxactivequeries to 40 and press Enter Tuning Outlook Web Access OWA Setting OWA Properties Hardware Upgrades Page Change and Configuration Management Prerequisites Change ManagementDefining Change Type Request for Change Is Submitted to Change Manager Change Is Passed to IT Executive Committee for Approval Change Manager Assesses the RFC Change Process Evaluation Change Is Passed to the Change Owner Scripting Minor and Standard Changes Minor and Standard Changes Software Control and Distribution SecurityDocumentation Configuration Management Configuration Management and Change Management Tools for Configuration ManagementConfiguration Items Microsoft Exchange 2000 Operations Guide Version Hardware Server Printer Software Exchange Hotfix Configuration Management Relationships Nine Configuration Items with Relationships Between Them Defining Configuration Items Maintaining the Configuration Management DatabaseConfiguration Management and Exchange Ownership Change Management Administering System Policies BackupExchange System Policies Security Summary Enterprise Monitoring System Monitor Performance Monitoring Exipc Exchange 2000 Objects and Counters to Monitor Smtp Service or Resource Performance Object Smtp Server Information Store CountersMSExchangeIS MSExchangeIS Mailbox and MSExchangeIS Public MSExchangeMTA and MSExchangeMTAConnections MSExchangeIM Virtual Servers Windows 2000 Objects and Counters to MonitorMSExchangeAL Subsystem Object Counter Exchange Comments Subsystem Object Counter Exchange Comments Centralized Monitoring Event Viewer Event Monitoring Centralized Event Monitoring Log Files Availability Monitoring Adding Services to the Default ConfigurationMonitoring and Status Tool Notifications Monitoring Resources Status Centralized Availability MonitoringDisabling Server Monitoring Client Monitoring Summary Page Chapter End Point Chapter Start Point Protection Against Hacking Firewall Operations Maintaining Firewall Availability Anti-Virus Measures Source Destination Service Protocol and portMonitoring Against Hacker Intrusion Dealing With Security Breaches Staying Current Dealing With Virus Infection File Extensions and File Types Blocking Attachments at the Client File Extension File Type Backing Up Disaster Recovery Procedures Protection Disk Imaging Offline Backup Recovering Lost Mailboxes Recovering Individual MessagesRestoring To connect an Exchange 2000 mailbox to another user Recovering Exchange Stores and Storage Groups Recovering Exchange After Active Directory Failure Full Exchange Server Recovery Alternate Server Recovery Recovery Testing Summary Page Support Reducing End User Support Costs Providing Support for End Users Support Problem Reporting Notifying Users Dealing with User Problems Exchange Problem Management Support Summary Access Control List ACL Access Control Entry ACEActive Directory Connector ADC Active Directory Services Interfaces Adsi ActiveX Data Objects ADO Administration groupAdsi Edit Asymmetric Cipher Clear item CiphersCollaboration Data Objects CDO for Windows Collaboration Data Objects Configuration Connection Agreement ConfigCA Conferencing Management Service CMSConference Technology Provider CTP Connection Agreement CA Domain Name Services DNS Domain modeDomain tree DSAccess Domain controller Enterprise Exchange Conferencing Services ECSEncryption Epoxy Exipc formerly known as Epoxy Event ServiceExtensible Storage Engine ESE also known as JET Forest also known as enterprise Group Installable File System IFSHash Functions Instant Messaging IM Lightweight Directory Access Protocol Ldap Internet Messaging Access Protocol version 4 IMAP4Joint Engine Technology JET Link State Algorithm LSA Name Service Provider Interface Nspi Metabase update serviceMessaging Application Programming Interface Mapi Metabase Opaque item Outlook Web AccessPolicy Post Office Protocol version 3 POP3 Remote Procedure Calls RPC Recipient Update Service RUSResource Resource mailbox Routing service Routing Group Connector RGCRouting group Routing Engine Secure Hash Algorithm version SchemaSecurity principal Simple Message Transfer Protocol Smtp Site Consistency Checker SCC also known as the Skcc Site Replication Service SRSStorage group Store 120 System attendantUser User Principal Name UPN Web Storage System Web-DAV509