Storage Foundation for Sybase ASE CE 7.4.1 Configuration and Upgrade Guide - Linux
- Section I. Configuring SF Sybase ASE CE
- Preparing to configure SF Sybase CE
- Configuring SF Sybase CE
- Configuring the SF Sybase CE components using the script-based installer
- Configuring the SF Sybase CE cluster
- Configuring SF Sybase CE in secure mode
- Configuring a secure cluster node by node
- Configuring the SF Sybase CE cluster
- Configuring SF Sybase CE clusters for data integrity
- Setting up disk-based I/O fencing using installer
- Performing an automated SF Sybase CE configuration
- Performing an automated I/O fencing configuration using response files
- Configuring a cluster under VCS control using a response file
- Section II. Post-installation and configuration tasks
- Section III. Upgrade of SF Sybase CE
- Planning to upgrade SF Sybase CE
- Performing a full upgrade of SF Sybase CE using the product installer
- Performing an automated full upgrade of SF Sybase CE using response files
- Performing a phased upgrade of SF Sybase CE
- Performing a phased upgrade of SF Sybase CE from version 6.2.1 and later release
- Performing a rolling upgrade of SF Sybase CE
- Performing post-upgrade tasks
- Section IV. Installation and upgrade of Sybase ASE CE
- Installing, configuring, and upgrading Sybase ASE CE
- Preparing to configure the Sybase instances under VCS control
- Installing, configuring, and upgrading Sybase ASE CE
- Section V. Adding and removing nodes
- Adding a node to SF Sybase CE clusters
- Adding the node to a cluster manually
- Setting up the node to run in secure mode
- Adding the new instance to the Sybase ASE CE cluster
- Removing a node from SF Sybase CE clusters
- Adding a node to SF Sybase CE clusters
- Section VI. Configuration of disaster recovery environments
- Section VII. Installation reference
- Appendix A. Installation scripts
- Appendix B. Sample installation and configuration values
- Appendix C. Tunable files for installation
- Appendix D. Configuration files
- Sample main.cf files for Sybase ASE CE configurations
- Appendix E. Configuring the secure shell or the remote shell for communications
- Appendix F. High availability agent information
About agents
An agent is defined as a process that starts, stops, and monitors all configured resources of a type, and reports their status to Cluster Server (VCS). Agents have both entry points and attributes. Entry points are also known as agent functions and are referred to as "agent functions" throughout the document.
Attributes contain data about the agent. An attribute has a definition and a value. You change attribute values to configure resources, which are defined as the individual components that work together to provide application services to the public network. For example, a resource may be a physical component such as a disk or a network interface card, a software component such as Sybase or a web server, or a configuration component such as an IP address or mounted file system.
Attributes are either optional or required, although sometimes the attributes that are optional in one configuration may be required in other configurations. Many optional attributes have predefined or default values, which you should change as required. A variety of internal use only attributes also exist. Do not modify these attributes - modifying them can lead to significant problems for your clusters. Attributes have type and dimension. Some attribute values can accept numbers, others can accept alphanumeric values or groups of alphanumeric values, while others are simple boolean on/off values.
The entry points and attributes for each SF Sybase CE agent are described in this appendix.