HP Mainframe Connectivity Design Guide

R
RADIUS Remote Authentication Dial-In User Service. A software tool used for data security.
RBAC Role-based access control. A Fabric OS feature used to determine which commands are supported
for each user.
RMF Resource Measurement Facility. A software tool used for troubleshooting and statistical planning.
RPO Recovery point objective.
RSCN Registered state change notification.
RSPAN Remote Switched Port Analyzer.
See also SPAN.
RTO Recovery time objective.
S
SAN Storage area network. An intelligent infrastructure that connects heterogeneous servers and shared,
heterogeneous storage systems.
SC Subscriber connector.
SCC Switch Connection Control. A data access policy that determines which switches a switch can
join.
SDH Synchronous Digital Hierarchy.
SDM System data mover. A mainframe-controlled replication application.
SecureShell A software tool used for data encryption.
SFOS Secure Fabric Operating System. Security software for B-series FICON directors.
SFP A 2 Gb or 4 Gb small form-factor pluggable transceiver.
SFP+ An 8 Gb small form-factor pluggable transceiver.
SFTP Secure File Transfer Protocol. A C-series security feature.
single-byte link
addressing
An addressing scheme that defines the egress port to which the CU is connected in an environment
in which the CU and the CHPID connect to the same director.
SMB Small and medium business. Any organization that uses onsite computer systems.
SMF System Management Facility. A database that contains historical RMF information.
SNMP v3 Simple Network Management Protocol (version 3). A security software product.
SONET Synchronous Optical Network. A network used to create an extended SAN by connecting local
SANs.
SPAN Switched Port Analyzer. A software tool used for diagnosing port problems.
spanned channels FICON or Fibre Channel channels shared by LCSSs.
SPOCK Single Point of Connectivity Knowledge. A database that provides interoperability information
for HP storage products (http://www.hp.com/storage/spock).
SPOF Single point of failure.
SSID Subsystem ID. A user-assigned number that identifies a DASD subsystem.
SSM Storage Services Module.
SSP Selective Storage Presentation. A feature that provides the ability to restrict access to a Fibre
Channel LUN.
ST Straight-tip connector.
subchannel
number
A system-assigned number for each device known to an LPAR in a mainframe processor. This is
the same value as the UCW.
See also UCW.
switch ID A mainframe HCD value that identifies the FICON director. Also known as the switch address.
switched fabric One or more interconnected switches.
170 Glossary