Visara SCON-20L Configuration Manual - Manual (Page 127)

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Appendix B. Glossary of Terms
Parallel Sysplex - Multiple mainframes or LPARs present a single system image to
the user.
PR/SM - Processor Resource/Systems Manager. Feature that allows for the configuration
of multiple LPARs on a CPU.
RFC - Request for Comment. This refers to the specification documents used to describe
most protocols and procedures associated with the TCP/IP environment.
Silo - Automated tape library product sold by StorageTek.
Support Element - PC directly attached to the mainframe that provides the mainframe
with the initial configuration and acts as the initial console at IPL time.
Virtual Private Network (VPN) - A session established across a public network, using
encryption to keep the session private.