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100 Sun StorageTek 2500 Series Array Hardware Installation Guide • March 2007
topologies. Fibre Channel was completely developed through industry cooperation,
unlike SCSI, which was developed by a vendor and submitted for standardization
after the fact.
Fibre Channel switch
A networking device that can send packets directly to a port associated with a given
network address in a Fibre Channel storage area network (SAN). Fibre Channel
switches are used to expand the number of servers that can connect to a particular
storage port. Each switch is managed by its own management software.
field-replaceable unit (FRU)
An assembly component that is designed to be replaced on site, without the system
having to be returned to the manufacturer for repair.
FRU
See
field-replaceable unit (FRU).
H
HBA
See
host bus adapter (HBA).
host
As a function of the Sun StorageTek 2500 Series array configuration, a representation
of a data host that is mapped to initiators and volumes to create a storage domain.
See also
data host, initiator.
host bus adapter (HBA)
An I/O adapter that connects a host I/O bus to a computer’s memory system.
Abbreviated HBA. Host bus adapter is the preferred term in SCSI contexts. Adapter
and NIC are the preferred terms in Fibre Channel contexts. The term NIC is used in
networking contexts such as Ethernet and token ring. See also
initiator.
host group
A group of hosts with common storage characteristics that can be mapped to
volumes. See also
host.
hot-spare
The drive used by a controller to replace a failed disk. See also
array hot-spare.