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IBM® Domino 10.0.1 Documentation
Welcome to the IBM® Domino 10.0.1 Administrator Help.
Installing
Use this documentation to install the IBM® Domino® server and subsequently deploy the IBM Notes® client.
Installing and upgrading Domino® servers
Perform a new or upgrade install of one or many Domino® servers.
Preparing for installing and setting up Domino® servers
Installing an IBM® Domino® server is the first part of deploying a server. The second part is using the Domino server setup program to configure the server.
Disabling concurrent I/O and direct I/O on Domino® servers on AIX®
Concurrent I/O (CIO) and Direct I/O (DIO) are not supported with Domino® servers. CIO is a file system feature introduced in IBM® AIX® 5.2.0.10, also known as maintenance level 01, in the Enhanced Journaling File system (JFS2). This feature improves performance for relational databases.

IBM® Domino 10.0.1 Documentation
Welcome to the IBM® Domino 10.0.1 Administrator Help.
- What's new in IBM® Domino® 10?
  Learn about all of the new features for administrators in IBM® Domino® 10.
- Overview
  Welcome to IBM® Domino® Administrator Help.
- Installing
  Use this documentation to install the IBM® Domino® server and subsequently deploy the IBM Notes® client.
  - Installing and upgrading Domino® servers
    Perform a new or upgrade install of one or many Domino® servers.
    - Preparing for installing and setting up Domino® servers
      Installing an IBM® Domino® server is the first part of deploying a server. The second part is using the Domino server setup program to configure the server.
      - Entering system commands
        Some of the procedures that follow include instructions for entering commands at the system command prompt.
      - Using the Domino® server with a trial evaluation license
        You can install Domino® with a trial evaluation license or with the traditional production license. There is a production certificate and an evaluation certificate and each has its own install kit. The first time the server is brought up without a production license, a trial license is automatically assigned. The server console displays a message indicating that Domino does not have a production license, and a temporary evaluation license has been created.
      - Domino® server installation
        The first step in deploying a Domino® server is installation, or copying the program files to the system's local drive.
      - Disabling concurrent I/O and direct I/O on Domino® servers on AIX®
        Concurrent I/O (CIO) and Direct I/O (DIO) are not supported with Domino® servers. CIO is a file system feature introduced in IBM® AIX® 5.2.0.10, also known as maintenance level 01, in the Enhanced Journaling File system (JFS2). This feature improves performance for relational databases.
      - Domino® server setup program
        The Domino® server setup program guides you through the choices you make to configure a Domino server. Setting up the first Domino server in a domain establishes a framework that consists of the Domino Directory, ID files, and documents. When you set up additional servers, you build upon this framework.
      - Domino® On-Disk Structure
        In this release, Domino® supports file format, on-disk structure (ODS) 51.
      - Installing the IBM HTTP server module to support TLS
        IBM HTTP Server (IHS) can now run on the same computer as a Domino server and support Transport Layer Security (TLS)
      - Using the Domino® server setup program
        The following procedures describe the ways you can use the server setup program.
      - Understanding the Domino® server certification log
        The Domino® certification log records server certification and ID information.
      - Domino® server registration
        Before you install and set up additional servers, you must register them. In effect, registering a server adds the server to the system. The server registration process creates a Server document for the server in the Domino® Directory and creates a server ID. After registering and installing a server, you use the server setup program to obtain a copy of the Domino Directory for the new server and to set up the server to run particular services and tasks -- for example, the HTTP service, the Mail Router, and so on.
      - Optional tasks to perform after Domino® server setup
        You can perform addition tasks after server startup.
      - Starting and shutting down the Domino® server
        Start the Domino® server at the server console.
      - Starting Domino® as an application or a Windows™ service
        If you have installed Domino® as a Windows™ service, when you start the Domino server, you are prompted to specify whether to start Domino as an application or a Windows service.
      - Using instant messaging in the Domino® Directory
        The Domino® Directory is enabled for instant messaging, meaning that you can conduct an online chat directly from the Domino Directory.
      - Running the Domino-Portal integration wizard
        Use the Domino-Portal integration (DPI) wizard to configure an IBM® WebSphere® Portal server to work with your Domino-based infrastructure.
    - Uninstalling a Domino® server
      While it is not necessary to uninstall a Domino® server prior to upgrading to a new Domino release, you may want to uninstall a server.
  - Installing and upgrading Notes® clients
  - Upgrading
    Use this documentation to upgrade the existing Domino® server and subsequently upgrade the Notes® client to a new release. You can also upgrade additional clients such as Domino Administrator and Domino Designer clients and additional features and plug-ins such as the embedded IBM® Sametime® client.
- Planning
  Use this topic as an overview of planning task.
- Configuring
  Use this information to configure an IBM® Domino® network, users, servers (including Web servers), directory services, security, messaging, widgets and live text, and server clusters. Also use this information to set up IBM iNotes® on a server using Domino Off-Line Services (DOLS).
- Securing
  This section describes IBM® Domino® security features, including execution control lists, IDs, and SSL.
- Administering
  This documentation provides information about the administration tools for managing and monitoring IBM Domino® servers and databases.
- Tuning
  Use this information to improve IBM® Domino® server, Domino Web server, and messaging performance through the use of resource balancing and activity trends, Server.Load commands, advanced database properties, cluster statistics, and the Server Health Monitor.
- Troubleshooting
  This section describes how to find and solve problems with IBM® Domino® server and Administrator client.
- Glossary

Disabling concurrent I/O and direct I/O on Domino® servers on AIX®

Concurrent I/O (CIO) and Direct I/O (DIO) are not supported with Domino® servers. CIO is a file system feature introduced in IBM® AIX® 5.2.0.10, also known as maintenance level 01, in the Enhanced Journaling File system (JFS2). This feature improves performance for relational databases.

About this task

Because the CIO feature is not supported for use with Domino® servers, do not enable this option on file systems that Domino® accesses. If this option is enabled, Domino® data might become corrupted, which can cause server crashes or performance issues.

Certain core file system items, such as file buffer cache, per-file lock or inode lock, and sync daemon, are managed differently by the operating system with the CIO option enabled. Domino® is not coded to address these changes in behavior.

The following example shows the output with CIO disabled:

/dev/test05lv     /test05 jfs2   Oct 09 23:13 rw,log=INLINE

The following example shows the output with CIO enabled:

/dev/test03lv /test03  jfs2   Sep 19 19:25 rw,cio,log=INLINE

For more information on the CIO feature, refer to the IBM® whitepaper Improving Database Performance With AIX® Concurrent I/O listed in the Related information section at the end of this topic..

The CIO option is typically enabled as a flag when a file system is mounted. Use these steps to disable the mount option:

Procedure

Run this command for each file system mounted with CIO:
```
chfs -a options=rw /FS_NAME
```
Where /FS_NAME is the name of the mount point.
Unmount and remount each file system, or reboot, which has the same effect when done after running the chfs commands.
To verify that the change was applied, run 'mount' and verify that you do not see "cio" in the mount options column.