disk controller (DKC)
The hardware component that manages front-end and back-end storage operations. The
term DKC is sometimes used to refer to the entire RAID storage system.
DKC
disk controller. Can refer to the RAID storage system or the controller components.
DKCMAIN
disk controller main. Refers to the firmware/microcode for the RAID storage system.
DKP
disk processor. Refers to the microprocessors on the back-end director features of the
Universal Storage Platform V/VM.
DKU
disk unit. Refers to the cabinet (floor model) or rack-mounted hardware component that
contains data drives and no controller components.
DMP
Dynamic Multi Pathing
DRU
Hitachi Data Retention Utility
DP-VOL
Dynamic Provisioning-virtual volume. A virtual volume with no memory space used by
Dynamic Provisioning.
dynamic provisioning
An approach to managing storage. Instead of "reserving" a fixed amount of storage, it
removes capacity from the available pool when data is actually written to disk. Also
called thin provisioning.
E
EC
error code
emulation group
A set of device emulation types that can be intermixed within a RAID group and treated
as a group.
env.
environment
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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Glossary-7
Hitachi TrueCopy® User Guide for Hitachi Virtual Storage Platform Gx00 and Fx00 Models
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