HP XP Array Manager Software - Manual (Page 127)

A Acronyms and Abbreviations
Table 36 Acronyms and Abbreviations
CU control unit (logical control unit)
DASD direct-access storage device
DFW DASD fast write
DKA disk adapter
DKC array control processor
DKCMAIN Disk Controller Main
ESCON Enterprise System Connection (IBM trademark for optical channels)
LAN local-area network
LDEV logical device
LU logical unit
LUN logical unit number
NVS nonvolatile storage
PC personal computer
PDEV physical device
P-VOL primary volume
RAID redundant array of independent disks
SM shared memory
SMPL simplex
S-VOL secondary volume
SVP service processor
TC Continuous Access
TCz TrueCopy for Mainframe
XP24000 Performance Monitor User's Guide 127