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Q235392: XADM: Slow Intra-Site Replication on Multi-Processor Server

Article: Q235392
Product(s): Microsoft Exchange
Version(s): winnt:5.5
Operating System(s): 
Keyword(s): exc55 EXC55SP3Fix
Last Modified: 30-SEP-1999

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The information in this article applies to:

- Microsoft Exchange Server, version 5.5 
-------------------------------------------------------------------------------


SYMPTOMS
========

In a multi-server site, intra-site replication may be slow on a multi-processor
server. This may occur when a multi-processor server needs to replicate many
changes out to other servers in the site, for example, after many mailboxes have
been modified or added. A multi-processor server may be slower compared to a
single-processor server performing the same task. Replication between different
sites is not affected.

The behavior described can be observed when you monitor the following counter in
the Windows NT Server Performance Monitor:

  Object: MSExchangeDS
  Counter: Objects Replicated Out/sec

The value of this counter may be higher on a single-processor server compared to
a multi-processor server. At the same time, the processor time used by the
Microsoft Exchange Server directory service is high.

RESOLUTION
==========

To resolve this problem, obtain the latest service pack for Exchange Server
version 5.5. For additional information, please see the following article in the
Microsoft Knowledge Base:

  Q191014 XGEN: How to Obtain the Latest Exchange Server 5.5 Service Pack

The English version of this fix should have the following file attributes or
later:

Component: Information Store

+-------------------------+
| File name  | Version    | 
+-------------------------+
| Gapi32.dll | 5.5.2600.0 | 
+-------------------------+
| Mdbmsg.dll | 5.5.2600.0 | 
+-------------------------+
| Netif.dll  | 5.5.2600.0 | 
+-------------------------+
| Store.exe  | 5.5.2600.0 | 
+-------------------------+

Component: Directory

+--------------------------+
| File name   | Version    | 
+--------------------------+
| Dsamain.exe | 5.5.2630.0 | 
+--------------------------+



STATUS
======

Microsoft has confirmed this to be a problem in Microsoft Exchange Server
version 5.5. This problem was first corrected in Exchange Server 5.5 Service
Pack 3.

Additional query words:

======================================================================
Keywords          : exc55 EXC55SP3Fix 
Technology        : kbExchangeSearch kbExchange550 kbZNotKeyword2
Version           : winnt:5.5
Issue type        : kbbug
Solution Type     : kbfix

=============================================================================

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