.SAN design reference guide Vol. 1-5 785350-001

Glossary
This glossary defines acronyms and terms used in this guide and is not a comprehensive
glossary of computer terms.
Symbols
3DC Three Data Center. A storage configuration that uses XP storage systems.
3PO Third-party option.
A
AAA Authentication, Authorization, and Accounting. A security protocol.
ABM Array-based management.
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.
ACL Access control list. A data protection feature used to restrict access to data resources based on
defined policies.
ACU Array Configuration Utility. A utility used to control LUN access.
ADG Advanced Data Guarding.
AES Advanced Encryption Standard. An encryption security technology.
AG Access Gateway. A software-enabled feature that allows B-series Blade switches to function as
port aggregators.
arbitrated loop See FC-AL.
ARL Adaptive Rate Limiting.
ASIC Application-specific integrated circuit.
ATM Asynchronous Transfer Mode. A communications networking technology for LANs and WANs
that carries information in fixed-size cells of 53 bytes (5 protocol bytes and 48 data bytes).
B
B-series Fibre Channel switches manufactured for HP by Brocade Communications Systems, Inc.
BB_credits Buffer-to-buffer credits.
BCN Backward Congestion Notification.
BE Back-side path. A path between the Data Path Module and the physical storage (for example,
an HP EVA).
Storage on the back-end array (SVSP).
BFS Boot from SAN.
C
C-series Fibre Channel switches manufactured for HP by Cisco Systems, Inc.
CA Certificate authority.
cascaded switch The destination director attached to the control unit.
CBC Cipher-block chaining. A data encryption cipher mode.
CEE Converged Enhanced Ethernet.
CFS Cisco Fabric Services. A C-series port security feature.
CHAP Challenge-Handshake Authentication Protocol. An IP SAN security technology.
CLIM Cluster I/O module. A hardware component of the HP NonStop server.
CN Converged Network.
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