Specifications

Lotus Redbooks Wiki – IBM Lotus Notes and Domino V8.5 Deployment Guide

organically and incrementally, as the needs of the organization have changed. Growth in the size and

maturity of an organization, mergers, acquisitions, and divestitures all have an effect on deployments, with

changes typically being tactical and incremental, rather than strategic.

When reviewing your Domino environment, you may find a need for some new hardware or added capacity.

You may also see an opportunity for server consolidation. For information about consolidating your Domino

environment, see Domino 7 Server Consolidation: Best Practices to Get the Most Out of Your Domino

Infrastructure, REDP-4181-00, which can be found at the following URL:

http://redbooks.ibm.com/Redbooks.nsf/RedbookAbstracts/redp4181.html

Considerations for upgrading existing Mail Servers

For many organizations, e-mail is considered a mission-critical application. For this reason, special attention

should be given to the evaluation of your mail infrastructure. When assessing your Domino mail servers, you

should consider each of the following areas:

• General server performance

•

Responsiveness

• Average and peak CPU utilization

• Average and peak memory utilization

• Average and peak transactions per minute

• Average and peak disk utilization

• Total disk usage for mail files

• Average mail file size

• Largest mail files

• Current quota practices

• Current archiving practices

• Average number of messages processed each day

• Average number of concurrent users

• Peak usage times

• Usage of local replica model

• Inbox size

• Attachment compression

• Design Compression

• Standard settings and configurations

• Use of Web-based mail

• HTTP

• IMAP

• SSL

• RSS

You are probably already monitoring many of these things, and you may have historical data to show you

how disk space usage and CPU utilization has increased over time. You may also track your top 10 largest

mail files, and track the overall disk footprint of mail files on your servers. You may even have implemented

an archiving and quota strategy to keep your mail files at or below a specified size, as well as a local replica

model to improve user experience and decrease user impact in the event of network or server issues.

Wherever you are today, understanding the work that your mail servers do is a very important part of

assessing your overall Domino environment.

Considerations for upgrading existing application servers