HP StorageWorks XP Remote Web Console Software - Manual (Page 79)

Glossary
C
CU Control unit.
D
DASD Direct-access storage device.
DFW DASD fast write.
DKA Disk adapter.
DKCMAIN Disk controller main.
E
ESCON Enterprise systems connection An optical interface used to connect the mainframe to the control
unit; a predecessor to FICON.
L
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.
LUN Logical unit number.
N
NVS Nonvolatile storage.
P
P-VOL Primary volume.
PDEV Physical device.
S
S-VOL Secondary or remote volume. The copy volume that receives the data from the primary volume.
SM Shared memory.
SMPL Simplex.
SVP Service processor. A computer built into a disk array. The SVP, used only by an HP service
representative, provides a direct interface to the disk array.
T
TCz
Hitachi TrueCopy™ for Mainframe.
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