Controlling the costs of an information system requires constant attention from IT managers. In the long run, Total Cost of Ownership (TCO) monitoring requires simplified infrastructure, which, as we will now see, is a multifaceted project. In the end, the benefits come not only from the expected cost control, but also from a higher level of security and higher availability of services.

Lotus Notes advanced server features. Simplifying and protecting your messaging and collaboration infrastructure is the desire of all companies of all sizes. The objectives are, in particular, to improve the availability of services to reduce overall costs. Faced with these projects, companies can consider several ways that can be agreed upon:

  • – Simplification of administration and control (also called “virtual consolidation”),
  • – Consolidation of distributed servers in regional data centers (also called “geographic consolidation”).
  • – Server consolidation (also called “homogeneous consolidation”).


Small and medium-sized enterprises find these problems at different scales: remember that for those with less than 50 posts, Server 2003 combines all technologies used by the largest companies in one product on one physical server, in accordance with a distributed or “consolidated” topology. The expected benefits of simplifying the infrastructure are of several types:

  • better accessibility of services,
  • lower total cost of ownership,
  • better risk management: control of the security level, response to problems.

Professional development with Lotus Notes. Simplify administration and control. From an administrative point of view, there are several key points: With the latest generation of products, it offers a seamless administration infrastructure around Directory, on the one hand, the console, on the other. Administration and Operations Manager. This latest product offers management packs for Exchange and Point, which includes almost 1,700 predefined rules developed by the product developers, which allows you to truly actively monitor the system, which leads to greater sensitivity to problems.

In terms of good administrative practice, related tools and technologies, customers have a guarantee of advanced risk management; for example, for Exchange, the so-called “tone dialing” scenario provides for a gradual but very fast recovery of the messaging service after a server failure (see the appendix for details of this scenario). Reducing the number of data center sites. This scenario, also known as geographic consolidation, essentially consists in moving distributed servers to a smaller set of regional “data centers” in order to simplify data center administration. together. Naturally, the remoteness of servers from client stations can lead to several problems, especially for messaging aspects whose quality of service problems are very specific: Saturation of the network bandwidth between servers and clients due to the increased data flow of the center. o The impact on the quality of service experienced by users who are now more sensitive to WAN latency.

Faced with these problems, the use removes the following two obstacles: Managing the local cache can hide all users with network latency; In 2003, users “feel” exclusively the response time of their workstation, which is necessarily better than in any WAN, especially, especially over time! Client / server data compression: By reducing the network bandwidth from 40% to 60% needed to transmit the same client / server traffic, Server 2003 provides greater geographic consolidation without sacrificing capabilities. WAN, especially at the data center level.

This scenario, also called homogeneous consolidation, is one of the most important business expectations. The rapid growth in the number of consolidation projects implemented by both the company and its main partners demonstrates the maturity level of Server 2003’s offer as a platform for corporate messaging. Some important examples: – Exchange 2000 Geocluster on cluster 2 IBM active / passive nodes, Hitachi arrays, use of the Veritas Volume Manager offer, 5000 users. This decision is in production on a large French account in the field of finance.
– Active / passive cluster of 6 Exchange 2003 nodes in France, designed to support 30,000 end users.