Adaptec DuraStor 7220SS User Manual page 153

Glossary
forced reset (kill)
When a storage system is in active-active mode, one controller can
force a reset (also known as kill) on the other controller by resetting
it and taking it offline. See also storage system.
free space
The space on an initialized disk drive that is not being used by an
array. Arrays are created from free space. When an array is deleted,
its space is returned to free space. See also array.
H
host bus adapter (HBA)
An HBA is the critical link between a host server or workstation
and a storage subsystem, integrating computing platforms,
operating systems, and I/O protocols to ensure proper
interoperability and functionality. The HBA provides direct
storage connectivity from the system to data within the storage
subsystem and enables stable, high-speed transmission of
information and files. HBAs manage the controller-specific aspects
of handling a storage driver interface device implemented as a
target driver, which supports mass storage peripheral devices such
as disks drives and tapes. A storage driver interface is used to
implement SCSI and other storage device drivers. An HBA
connects to the storage subsystem to the host computer and uses
either fiber or copper media.
hot-swapping
Removing a component from a system and installing a new
component while the power is on, the system is running, and
without pausing I/O.
I
initiator
An initiator (host system) sends operation requests to be
performed by a target device (peripheral). See also target.
J
JBOD
Just a Bunch of Disks. See volume set.
Glossary-5