IBM manual Domino R5 on AIX Specifics

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Lotus Domino Server R5 Implementation Guide

June 18, 2001

 

 

Among the key Domino R5 features that enable it to scale with these platforms are:

ŸUnlimited database size (currently certified up to 64 GB), to support increased database workloads.

ŸDirectory scalability in excess of one million users, to easily handle the directory requirements of even the largest deployments. (Lotus has tested a Domino R5 Directory with 10 million entries)

ŸDatabase optimizations to better exploit high-end I/O and CPU throughput.

ŸSupport for online indexing, online database compacting, and online backup; to take advantage of high-end systems and I/O subsystems.

ŸIncreased overall scalability enabling support for more users on fewer partitions, to drive down per-user costs across large, partitioned servers.

Domino R5's ability to keep running during scheduled maintenance tasks like database compaction, indexing and backup makes server consolidation in general more attractive, since large numbers of users will not be inconvenienced due to scheduled outages.

And R5's greater scalability and new high availability features make server partitioning a more attractive alternative than ever. Partitioning yields lower total cost of ownership: administration and maintenance are simplified, and fewer moving parts increases reliability, security and availability (if one partition fails, others remain available).

Domino R5 on AIX Specifics

Domino R5 on AIX leverages many platform-specific services directly. For example, R5's new thread pooling capability was optimized specifically for AIX. And Domino R5's high-availability features are particularly well-integrated and complement those of HACMP of AIX. For example, R5's transaction logging makes performance and UNIX® auto-restart features even more effective, by allowing Domino to restart very quickly.

For customers using Domino as a Web application server on AIX, R5 clustering supports both failover and load balancing for Web clients. And the Domino R5 Server's clustering features are complementary to HACMP on AIX, such as high-speed interconnects, disaster tolerance and support for many-node clusters. In fact, Domino clustering in combination with AIX-based clustering can bring system availability into the 99.99% range.

When looking to size a Domino R5 server on AIX, the basics for memory, disk, and network adapters has not changed from R4. What has changed are the scalability factors that can be applied to determine the number of partitions and the number of users per partition. As a rule of thumb, we see the scalability doubled (meaning Domino can now support up to 4 processors per partition with scalable growth as processors are added) and approximately 1.5 to 2 X the number of users per partition. Example: With R4, if we have a 4-way running two partitions of 600 users each for a total of 1200 active users, then R5 with the same 4-way could support the same 1200 active users on a single partition (hence better administration). Therefore, as a guideline:

ŸR4 - one partition for every two processors

ŸR5 - one partition for every four processors

ŸR4 - one partition for every 600 - 800 active users

ŸR5 - one partition for every 1600 - 2000 active users

If workloads are unknown or heavy, then the lower limits should be planned for and then measurements made once in production.

When clustering is used, customers have reported approximately a 20-25% overhead. If calendaring and scheduling is used, an approximate 25% overhead should be applied.

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Contents Revised June 18 Disclaimer PSeries Lotus Domino Server e-business Solution Overview Lotus Domino Server R5 Implementation Guide Domino Release AIX Release Supported Software ReleasesComponent Recommended Level PTF MatrixNetwork Topology Performance GuidelinesWhat Affects Application Responsiveness? Network Protocols and TopologyKnow the Configuration Steps to Maximum Domino PerformanceOther Workload Factors Distribute I/O Across Physical Disks Log Performance Metrics ConsistentlyOptimize for Domino R5 Know the Symptoms of Server Over-Utilization Make Use of NotesBench DataLearn from Semaphores Lotus NotesBench Know When to Consolidate and When to DistributeConsider Clustering Consider Partitioning28,032 38,235 $23.91 $17.53 Sizing Guidelines Client Type R5 Scalability Increase Domino R5 on AIXDomino R5 on AIX Specifics RS/6000 Domino Server Sizing Tool Large Configuration Sample ConfigurationsSmall Configuration Medium ConfigurationCourse Name Course Cost Course Duration Course Number Pre-installation SupportPre-sales Technical Support EducationLotus Domino Server R5 Implementation Guide Implementation Process Overview Select an Install TeamWorkstations Train Domino and Network AdministratorsNetwork ServersSetup a Pilot Project Create an Install Plan for the Network Infrastructure Create or Modify an Existing Disaster Recovery Plan Operating System HardwareServer Workstation Schedule and Perform the Installation of the Domino Servers Lotus Domino Server R5 Implementation Guide Monitor Servers and Assist Users as Needed Document Experiences, Problems, and SolutionsLotus Domino Server R5 Implementation Guide Completed? Checklist for ImplementationPreparing the AIX Environment Installation StepsLogin to AIX as the Root User Check your Default Path Environment VariableCreate a Volume Group Create AIX GroupsCreate AIX Users Create a Logical Volume for the Domino Data Directory Create a Logical Volume for the Domino BinariesCreate a File System for the Domino Data Directory Change Ownership of the New File Systems Check AIX Kernel ConfigurationCreate a File System for the Domino Binaries Mount the File SystemsWelcome Screen Installing the Lotus Domino ServerRun the Install Program From the CD Mounting the CdromFile Installation Complete Select the Type of Domino Server to InstallSetup for Partitioned Domino Servers Configuration ReviewServer Setup is Complete Start the Http Server Task For Server ConfigurationAdministration Settings Network and Communication SettingsDomino Product Support Post-installation SupportHardware Support AIX SupportService Description Contact Services AvailableAdditional Technical Resources URLsRedbooks Publications Small Configuration Appendix A. Sample Configurator ConfigurationsCD-ROM Medium Configuration Lotus Domino Server R5 Implementation GuideJune 18 CD-ROM Large Configuration Lotus Domino Server R5 Implementation GuideJune 18 CD-ROM Appendix B. IBM Production Configuration Lotus Domino Server R5 Implementation Guide

R5 specifications

IBM R5, also known as IBM Notes R5, marked a significant evolution in the IBM Notes and Domino platform, offering users enhanced capabilities and features that improved productivity and collaboration in the workplace. Released in 1999, R5 introduced a more refined user interface, improved performance, and a range of new tools designed to facilitate communication and teamwork.

One of the standout features of IBM R5 was its comprehensive integration of email, calendaring, and tasks within a single interface. This centralized approach allowed users to manage their communications more efficiently, reducing the need to switch between multiple applications. The improved email functionality included enhanced filtering and sorting capabilities, enabling users to better organize their inboxes.

The R5 version also introduced significant advancements in the collaborative aspects of the platform. With new tools for team collaboration, such as enhanced discussion databases and a shared documents feature, R5 made it easier for teams to work together on projects irrespective of their physical locations. The introduction of instant messaging capabilities further bridged communication gaps, allowing users to connect in real time.

IBM R5 was built on a robust architecture that incorporated Domino server enhancements, which improved scalability and performance. The platform supported new technologies, including Java applets, allowing developers to build more dynamic and interactive applications. Additionally, the integration of the LDAP (Lightweight Directory Access Protocol) provided better directory services, making it simpler to manage user identities across the network.

Security features were also a focus in R5, with improvements in encryption and user authentication that helped safeguard sensitive data. The platform’s ability to integrate with other enterprise applications while maintaining robust security protocols made it a choice for organizations that prioritized data protection.

Moreover, IBM R5 incorporated a more modular and flexible architecture, enabling easier customization and management of applications and components. This adaptability catered to a wide range of business needs, thus positioning IBM Notes R5 as a versatile solution for organizations looking to enhance their workflow and communication processes.

Overall, IBM R5 served as a milestone in the evolution of enterprise collaboration solutions. Its innovative features, user-friendly interface, and robust security measures laid the foundation for future developments in the IBM Notes and Domino ecosystem, ultimately contributing to more efficient and effective business practices.
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