
Glossary
A |
|
AMS | Adaptable module storage. |
ATA | Advanced Technology Attachment standard. |
C |
|
CHA | Channel adapter. A device that provides the interface between the array and the external host |
| system. Occasionally, this term is used synonymously with the term channel host interface processor |
| (CHIP). |
CV | |
E |
|
ESCON | Enterprise systems connection An optical interface used to connect the mainframe to the control |
| unit; a predecessor to FICON. |
ExG | External volume group. |
F |
|
FC | Fibre Channel. A network technology primarily used for storage networks. |
FICON | Fibre connectivity. Hardware that connects the mainframe to the control unit. |
H |
|
HDD | Hard disk drive. |
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, |
| depends on the selected emulation mode. The term LDEV is also known as term volume. |
LDKC | Logical disk controller. |
LUN | Logical unit number. |
M |
|
MCU | Main control unit. |
MIH | Missing interrupt handler. |
O |
|
OTP | Online transaction processing. |
P |
|
| Primary volume. |
PB | Petabyte. 1 PB (petabyte) = 1,0005 bytes (hard disk storage) or 1 PB (petabyte) = 1,024 TB or |
| 1,0245 bytes (logical storage). |
PCB | Printed circuit board. |
R |
|
RCU | Remote control unit. |