HP Mainframe Connectivity Design Guide

Glossary
This glossary defines acronyms and terms used in this guide. It is not a comprehensive
glossary of computer terms.
Table 95 (page 164) provides a list of Fibre Channel terms and the equivalent FICON
terms.
Table 95 Comparison of Fibre Channel and FICON terms
FICON termFibre Channel term
CPCCPU
DASDDisk
FICON (FC-SB-2/FC-SB-3 Protocol in Layer 4)FCP
DirectorFibre Channel switch
ChannelHBA
CHPIDHBA address
DeviceLUN
Static routingOSPF and other routing protocols
CCWsSCSI commands
CU or LCUTarget
Alphanumeric
1-byte link
addressing
See single-byte link addressing.
2-byte link
addressing
See double-byte link addressing.
Symbols
µ Micron.
A
access
authorization
A fabric security method that provides frame-level access control in hardware and verifies the
SID-DID combination of each frame. Also known as hard zoning.
access methods An IBM term for software that moves data between main storage and I/O devices to create
channel programs and manage system buffers.
ACL Access Control List. A data protection feature that restricts access to data resources based on
defined policies.
ACS Array Controller Software. The firmware that runs on HSG80 controller-based storage systems.
arbitrated loop See FC-AL.
ARL Adaptive Rate Limiting. A feature that dynamically adjusts data transmission through the TCP
connections in a FCIP tunnel.
ATM Asynchronous Transfer Mode. Communications networking technology for LANs and WANs;
carries information in fixed-size cells of 53 bytes (5 protocol and 48 data).
B
B-series FICON directors manufactured for HP by Brocade Communications Systems, Inc.
164 Glossary