Hitachi Universal Storage Platform V - Page 95

Acronyms and Abbreviations Acronyms-3
Hitachi Universal Storage Platform V/VM User and Reference Guide
HCD hardware configuration definition
HDD hard disk drive
HDLM
Hitachi Dynamic Link Manager
HDS
Hitachi Data Systems
HDU
hard disk unit
HGLM Hitachi Global Link Manager
Hi-Star
Hierarchical Star Network
HPF High Performance FICON
HSN
Hierarchical Star Network
HWM
high-water mark
Hz
Hertz
ICKDSF
A DSF command used to perform media maintenance
IDCAMS
access method services (a component of Data Facility Product)
IML
initial microprogram load
in.
inch(es)
IO, I/O
input/output (operation or device)
IOCP
input/output configuration program
I-site intermediate site (Universal Replicator 3DC cascading configuration)
JCL
job control language
JNL journal
JNLG journal group
KB
kilobyte (see Convention for Storage Capacity Values)
kcal
kilocalorie
kg
kilogram
km
kilometer
kVA
kilovolt-ampere
kW
kilowatt
LAN
local area network
lb
pound
LD
logical device
LDEV
logical device
LED
light-emitting diode
LPAR
logical partition
LCP
link control processor, local control port
LRU
least recently used
LU
logical unit
LUN
logical unit number, logical unit
LVI
logical volume image
LVM
logical volume manager, Logical Volume Manager
LW
long wavelength
m
meter
MB
megabyte (see Convention for Storage Capacity Values)
MIH
missing interrupt handler
mm
millimeter
MP
microprocessor
MPLF
Multi-Path Locking Facility
MR
magnetoresistive
ms, msec
millisecond
MVS
Multiple Virtual Storage (including MVS/ESA, MVS/XA)