User`s guide

B – Glossary
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HBA Host bus adapter. An HBA is the board that interfaces
between the host system and device. HBA is
synonymous with host adapter, adapter, and adapter
board. In SANsurfer FC HBA Manager documentation,
the term QLA200/QLA2xxx HBA is used.
HBA alias A user-defined name for an HBA.
HBA port An HBA port is port on the HBA.
HBA port alias A user-defined name for an HBA port.
HBA port beacon Flashing the HBA port beacon is a feature of SANsurfer
FC HBA Manager that enables you to flash the
QLA23xx HBA’s LED to locate the HBA in your
computer.
IOCB IOCB stands for I/O control block. An IOCB is a
command structure in QLogic ISP architecture.
JBOD JBOD stands for just a bunch of disks.
LIP LIP stands for loop initialization process. LIP is the
initialization process in an arbitrated loop that occurs
when the loop is powered up or a new device is added.
One function of a LIP is to assign addresses. All data
transmission on the loop is suspended during a LIP.
Load balancing Load balancing is a software feature that improves
system performance by balancing device access
between multiple QLA2xxx HBAs for maximum
resource efficiency. This feature is available in
Windows 2000/Windows Server 2003, Novell
NetWare, and Red Hat/SuSE Linux.
Loopback Loopback is a diagnostic tool where data is transmitted
and received by the QLA2xxx HBA.
Loop ID Loop ID is the device’s AL_PA on the loop.
LUN LUN stands for logical unit number, the small integer
handle that identifies a portion of disk storage. A LUN
can consist of a single physical disk or many physical
disks. A physical disk can be broken into multiple LUNs.
LUN masking LUN masking is a software feature that assigns LUNs
to specific servers or hides LUNs from specific servers
for maximum access and availability control.