Learn about planning for the installation procedure.
Note:
There has been a change to license quantity used by per-CPU and per-chip license types in version 15.5 Cluster Edition. Adaptive Server checks the same number of licenses as the number of cores on
the machine (or chips, depending on the license type) regardless of any configuration settings.
This behavior is not a change in licensing terms, but instead is a correction from earlier
versions of Adaptive Server, in which if Adaptive Server was licensed per CPU or CPU chip,
the license quantity requested was reduced if the max online engines configuration
parameter was fewer than the number of CPUs on the machine.
Note: See the Users Guide for hardware
requirements for using Infiniband, Interconnect on a production system. Sybase does not support file
system devices when running on multiple nodes.
Note: If you intend to run the cluster under Symantec Storage Foundation for Sybase Cluster Edition, refer to Chapter 11, “Using the Cluster
Edition with the Veritas Cluster Server,” In the Clusters
Users Guide for more information on how to do this.
Database devices in the Cluster Edition must support SCSI-3
persistent group reservations (SCSI PGRs). Cluster Edition uses
SCSI PGRs to guarantee data consistency during cluster membership
changes. Sybase cannot guarantee data consistency on disk subsystems
that do not support SCSI PGRs (such a configuration is supported
for test and development environments that can tolerate the possibility
of data corruption).