HP 316095-B21 - StorageWorks Edge Switch 2/24 Installation Manual page 132

Glossary
power-on self-test
Series of self-tests executed each time the unit is booted or reset.
preferred domain ID
Domain ID that a switch is assigned by the principal switch in a switched fabric. The preferred
domain ID becomes the active domain ID except when configured otherwise by the user.
principal switch
In a multi-switch fabric, the switch that allocates domain IDs to itself and to all other switches
in the fabric. There is always one principal switch in a fabric. If a switch is not connected to
any other switches, it acts as its own principal switch.
product manager
Application that implements the management user interface for the switch.
product name
User-configurable identifier assigned to a managed product. Typically, this name is stored on
the product itself. For the switch, the product name can also be accessed by an SNMP manager
as the system name.
protocol
A standard procedure for regulating data transmission between computers.
PSP bucket
See preventive service planning bucket.
R_A_TOV
See resource allocation time-out value.
redundancy
Performance characteristic of a system or product whose integral components are backed up
by identical components to which operations will automatically failover in the event of a
component failure. Redundancy is a vital characteristic of virtually all high-availability (24
hr./7 days per week) computer systems and networks.
redundant FRU
SFP LC transceivers, power supplies, and cooling fans that can be removed or replaced
without disrupting switch or Fibre Channel link operation.
remote access link
Connection to a device or program on a computer network via a (geographically) remote
workstation.
Glossary–18 edge switch 2/24 installation guide