January 2007
Intermediate to advanced
274 pages
10h
English
book
Communications Server for z/OS V1R8 TCP/IP Implementation Volume 3: High Availability, Scalability, and Performance
by Bill White, Yukihiko Miyamoto, Gilson Cesar de Oliveira, Roland Peschke
Overview
In this IBM Redbooks publication we begin with a discussion of
Virtual IP Addressing (VIPA), a TCP/IP high-availability approach
introduced by the z/OS Communications Server. We then proceed to
show how VIPA can be used for high availability—both with and
without using a dynamic routing protocol. Then we discuss a number
of different workload balancing approaches that can be used with
the z/OS Communications Server. In this book we use the terms
internal and external application workload balancing to refer to
approaches where the decision as to which application instance
should received a given connection request is made within the
sysplex environment (such as by Sysplex Distributor) or outside of
it (using a separate, external, workload balancing solution),
respectively. Finally, we explain the optimized Sysplex Distributor
intra-sysplex load balancing. This function is an improved
multi-tier application support using optimized local connections
together with weight values from extended WLM interfaces.
For more specific information about CS for z/OS base functions,
standard applications, and security, reference the other volumes in
the series. These are:
Communications Server for z/OS V1R8 TCP/IP Implementation, Volume 1
- Base Functions, Connectivity, and Routing, SG24-7339
Communications Server for z/OS V1R8 TCP/IP Implementation, Volume 2
- Standard Applications, SG24-7340
Communications Server for z/OS V1R8 TCP/IP Implementation, Volume 4
- Policy-Based Network Security, SG24-7342
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