Glossary – HP 8.20q Fibre Channel Switch User Manual
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HP StorageWorks Simple SAN Connection Manager user guide
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Glossary
adapter
See
.
BIOS
Basic Input Output System (typically in Flash PROM). The program (or utility) that serves as an
interface between the hardware and the operating system and allows booting from the HBA at
startup.
device
A target, typically a disk drive. Hardware such as a disk drive, tape drive, printer, or keyboard
that is installed in or connected to a system. In FC, a target device.
driver
The software that interfaces between the file system and a physical data storage device or
network media.
The level structure for Windows XP Professional/2000/Windows Server 2003 drivers is as
follows:
•
Class Driver. The highest driver level. There is a separate class for disk, Ethernet, and so
forth. This level handles all generic aspects of operations for that class.
•
Port Driver. The middle driver level, which handles aspects of the operation specific to the
port type; for example, there is a port driver for SCSI.
EVA
HP StorageWorks Enterprise Virtual Array. A high-performance, high-capacity, and
high-availability storage solution. Each EVA storage system includes a pair of HSV virtualizing
storage controllers and the disk drives they manage.
Fibre Channel (FC)
A high-speed serial interface technology that supports other higher layer protocols like SCSI
and IP. Standardized under ANSI in 1994.
HBA (Host Bus
Adapter)
The board that interfaces between the host system and the target devices. HBA is synonymous
with adapter, host adapter, and adapter board.
HBA alias
A user-defined name for an HBA.
HBA port
A port on the HBA board.
HBA port alias
A user-defined name for an HBA port.
LUN
Logical Unit Number, a subdivision of a SCSI target. A LUN is the small integer handle that
differentiates an individual disk drive or partition (volume) within a common SCSI target device
such as a disk array.
Technically, a LUN can be a single physical disk drive, multiple physical disk drives, or a
portion (volume) of a single physical disk drive. However, LUNs are typically not entire disk
drives but rather virtual partitions (volumes) of a RAID set.
Using LUNs, the FC host can address multiple peripheral devices that may share a common
controller.
LUN masking
A software feature that assigns LUNs to specific servers or hides LUNs from specific servers for
maximum access and availability control.
MSA
HP StorageWorks Modular Smart Array. MSA allows you to “hot add” drives, servers, and disk
enclosures—which delivers significant operational savings over traditional Direct Attach
Storage (DAS)—while maintaining the affordability and efficiency of Smart Array.
NIC
Network Interface Controller.
network adapter
A chip that provides network capabilities. A computer may include a network adapter on its
system board, or on an adapter card. Also a NIC (network interface card or controller).