FW 05.01.00 and SW 07.01.00 HP StorageWorks Directors and Edge Switches Glossary (AA-RU5JA-TE, June 2003)

Glossary
22 Directors and Edge Switches Glossary
product name
User-configurable identifier assigned to a managed product. Typically, this name is stored on
the product itself. For the director, the product name can also be accessed by an SNMP manager
as the system name.
prohibited port connection
In S/390 operating mode, an attribute that removes dynamic connectivity capability.
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
hours per day, seven days per week) computer systems and networks.
remote access link
Connection to a device or program on a computer network via a (geographically) remote
workstation.
remote notification
A process by which a system is able to inform remote users and/or workstations of certain
classes of events that occur on the system. E-mail notification and the configuration of SNMP
trap recipients are two examples of remote notification programs that can be implemented on
director-class switches.
remote user workstation
Workstation, such as a PC, using the HAFM and Product Manager applications, which can
access the HAFM server over a LAN connection.
resource allocation time-out value
(R_A_TOV) — User-specified value used to time out operations that depend on the maximum
possible time that a frame could be delayed in a fabric and still be delivered.
RFI
Acronym for radio frequency interface.
RFI shield
Radio frequency interface shield (S/390 mode only).
SAN
See storage area network.
SBAR
See serial crossbar assembly.