HP StorageWorks XP Remote Web Console Software User Manual
Page 259
H
HD
Head.
HWM
High water mark.
I
ICKDSF
A DSF program used to perform media maintenance.
IDCAMS
access method services (a component of Data Facility Product)
IML
Initial microcode load.
IMPL
Initial microprogram load.
IMS
Information management system.
IOCDS
I/O control data set. A mainframe definition of information related to I/O and peripheral devices.
IPL
Initial program load.
J
JCL
Job Control Language.
L
LCU
Logical control unit.
LD, LDEV
Logical device. An LDEV is created when a RAID group is carved into pieces according to the
selected host emulation mode (that is, OPEN-3, OPEN-8, OPEN-9). The number of resulting LDEVs
depends on the selected emulation mode. The term LDEV is also known as term volume.
LVI
Logical volume or image (for example, 3390-3R).
M
M-VOL
Main volume.
MCU
Main control unit.
MIH
Missing interrupt handler.
MPSD
Multiple path storage director.
ms, msec
Millisecond.
MVS
Multiple virtual storage.
N
NVS
Nonvolatile storage.
P
P/DAS
PPRC dynamic address switching.
PB
Petabyte; equals 1,000^5 bytes (for physical storage such as hard disk drives) or 1,024 TB or
1,024^5 bytes (for logical storage).
PiT
Point-in-time.
PPRC
Peer-to-peer remote copy.
PTF
program temporary fix
R
R-VOL
Remote volume.
RAID1/5
Specific RAID architectures.
RC
Reference code.
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