Installation guide

CHAPTER 3
Adaptive Server Components
Adaptive Server
®
Enterprise is based on a client/server model, communicating with its clients
over the network via the Tabular Data Stream
™
(TDS) protocol. Each client process may
execute on one machine and communicate with a database server on the same or a different
machine.
Adaptive Server runs as an application on top of an operating system. The hardware that the
operating system runs on is completely transparent to Adaptive Server, which sees only the
operating system's user interfaces. To enhance performance on multiprocessor systems,
configure multiple processes (engines).
Adaptive Server is divided into a DBMS component and a kernel component. The kernel
component uses the operating system services for process creation and manipulation, device
and file processing, and interprocess communication. The DBMS component manages SQL
statement processing, accesses data in a database, and manages different types of server
resources.
Adaptive Server Editions
Sybase
®
offers various editions of Adaptive Server Enterprise.
• Enterprise Edition – has no limit on scalability and can run all available options that can be
purchased separately.
• Small Business Edition – has limited scalability, and runs a limited set of options that are
purchased separately.
• Developer Edition – has limited scalability and includes many of the options that are
included in the Enterprise Edition.
See the
Sybase Software Asset Management Users Guide for information about unlocking
editions and optional features.
There is a change to the license quantity used by per-CPU and per-chip license types. Adaptive
Server version 15.7 ESD #2 and later checks out 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 is a correction from earlier versions of the server, in which if Adaptive Server
was licensed per CPU or CPU chip, the requested license quantity was reduced if the max
online engines configuration parameter was set to fewer than the number of CPUs on the
machine.
The Adaptive Server installer automatically installs a SySAM license server if you choose the
full installation option or enter a served license when prompted for the SySAM license key.
You can also install the license server using the installer's custom installation option. See the
Sybase Software Asset Management Users Guide to generate licenses.
Installation Guide 5