Hitachi Lightning 9900™ User and Reference Guide 121
Acronyms and Abbreviations
ACP array control processor
ASTM American Society for Testing and Materials
BS basic (power) supply
BSA bus adapter
BTU British thermal unit
°C degrees centigrade/Celsius
ca cache
CFW cache fast write
CH channel
CHP channel processor or channel path
CHIP client-host interface processor
CHPID channel path identifier
CKD count key data
CL cluster
CPU central processing unit
CSA Canadian Standards Association
CSW cache switch
CU control unit
CVS custom volume size
DASD direct access storage device
dB(A) decibel (A-weighted)
DFDSS Data Facility Dataset Services
DFSMS Data Facility System Managed Storage
DFW DASD fast write
DKC disk controller
DKU disk unit
dr drive
DSF Device Support Facilities
DTDS+ Disaster Tolerant Disk System Plus
ECKD Extended Count Key Data
EOF end of field
EPO emergency power-off
EREP Error Reporting
ESA Enterprise Systems Architecture
ESCON® Enterprise System Connection (IBM® trademark for optical channels)
ExSA™ Extended Serial Adapter™
FAL File Access Library (part of the HRX software)
FBA fixed-block architecture
FC fibre-channel
FC-AL fibre-channel arbitrated loop
FCC Federal Communications Commission
FCU File Conversion Utility (part of the HRX software)
FDN Freedom Data Networks