You can choose whether to configure your cluster using a shared or private installation:
Shared installation – requires a shared file system created using a Network File System (NFS) or a cluster file system. A cluster created using a shared installation supports a single $SYBASE installation directory, Adaptive Server home directory, and server configuration file.
Private installation – supports a separate $SYBASE installation directory, Adaptive Server home directory, and server configuration file for each instance. Parity among the server configuration files is maintained by the master configuration file on the quorum device.
Sybase recommends that you use LDAP as your directory
service when using a private installation.
The cluster input file contains an entry that identifies whether the installation mode is shared or private:
installation mode = private | shared
You can find instructions for setting up a private or shared installation in sybcluster, Adaptive Server online help documentation, and in the installation guide for your platform. See also “Private installation mode” for instructions on how to maintain the server configuration file when using private installation mode.
