Cluster Edition Preinstallation Checklist

Before you begin the installation process, identify your settings and determine how to set up your environment.

Use this checklist to determine the configuration for an installation of Adaptive Server Cluster Edition.

Configuration Value
Will the cluster installation support a shared (NFS), or private installation?  
Will the cluster use LDAP (recommended for private installations), or an interfaces file for server lookup information?  
Will the cluster support Java in the database via a third-party JVM?  
Will the cluster support Veritas Cluster Server (VCS) for managing application servers in the clustered environment?  
Will the cluster use a single or multiple Backup Servers?  
Where will the $SYBASE installation directory reside? (Private installations require a separate $SYBASE installation directory for each instance.)  
How many instances will be in the cluster?  
What will the names of the clusters in the instance be?  
What is the Domain Name Service for the network on which the cluster will run? (The Sybase Control Center agent and the sybcluster utility do not function properly if the DNS entries are entered incorrectly for any node.)  
How many raw devices will each database device use? (For the Cluster Edition, you must create all devices, database devices, and quorum devices as raw devices on shared disks.)  
How many agents will there be in the cluster? (SAP recommends that you use one node for each instance in the cluster, with two or more engines per instance.)  
What raw devices will each database device use? (You must create all devices, database devices, and quorum devices as raw devices on shared disks.)  
What is the range of port numbers each instance will use to exchange messages with other instances via the private interconnect? (Choose unique port numbers that are not in use by other applications.)

Local user temporary databases do not require shared storage and can use local file systems created as private devices. However, local system temporary databases you create during the cluster configuration can use only shared disks. See Using Temporary Databases in the Cluster Users Guide.

Note: The Adaptive Server plug-in, Sybase Control Center, and sybcluster supply default values if your system does not have an existing standard.
 
What is the query or listening port number for each instance? (Choose unique port numbers that are not in use by other applications.)  
What are the IP addresses or network names of the private primary and secondary network cards on each node? (The only network protocol currently supported is UDP.)