Intel 170 Servers User Manual

In preparation for future Domino releases which will provides support for DB2 files, the previous
processing limitations associated with DSD models have been removed in i5/OS V5R3.  

In addition, a PTF is available for V5R2 which also removes the processing limitations for DSD models
and allows full use of DB2.  Please refer to PTF MF32968 and its prerequisite requirements. 

The sections below from previous versions of this document are provided for those users on OS/400
releases prior to V5R3.

Included in the V5R2 February 2003 iSeries models are five iSeries for Domino offerings.  These  include
three i810 and two i825 models.  The iSeries for Domino offerings are specially priced and configured for
Domino workloads.  There are no processing guidelines for the iSeries for Domino offerings  as with
non-Domino processing on the Dedicated Server for Domino models.  With the iSeries for Domino
offerings the full amount of DB2 processing is available, and it is no longer necessary to have Domino
processing active for non-Domino applications to run well.  Please refer to Chapter 11 for additional
information on Domino performance in iSeries, and Appendix C for information on performance
specifications for iSeries servers. 

For existing iSeries servers, OS/400 V5R2 (both the June 2002 and the updated February 2003 version)  
will exhibit similar performance behavior as V5R1 on the Dedicated Server for Domino models.  The
following discussion of the V5R1 Domino-complimentary behavior is applicable to V5R2.  
  
Five new DSD models were announced with V5R1. These included the iSeries Model 270 with a 1-way
and a 2-way feature, and the iSeries Model 820 with 1-way, 2-way, and 4-way features. In addition,
OS/400 V5R1 was enhanced to bolster DSD server capacity for robust Domino applications that require
Java Servlet and WebSphere Application Server integration.  The new behavior which supports
Domino-complementary workloads on the DSD was available after September 28, 2001 with a refreshed  
version of OS/400 V5R1. This enhanced behavior is applicable to all DSD models including the model
170 and previous 270 and 820 models.  Additional information on Lotus Domino for iSeries can be found
in Chapter 11, “Domino for iSeries”.

For information on the performance behavior of DSD models for releases prior to V5R1, please refer the
to V4R5 version of this document.

Please refer to Appendix C for performance specifications for DSD models, including the number of Mail
and Calendaring Users (MCU) supported.

This section describes the performance behavior for all DSD models for the refreshed version of OS/400
V5R1 that was available after September 28, 2001.   

A white paper, Enhanced V5R1 Processing Capability for the iSeries Dedicated Server for Domino,
provides additional information on DSD behavior and can be accessed at:  

IBM i 6.1 Performance Capabilities Reference - January/April/October 2008

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 Copyright IBM Corp. 2008