HP 316095-B21 FW 08.01.00 McDATA EFCM Basic User Manual (620-000240-000, Novem - Page 293

S, independent disks

Page 293 highlights

Glossary R_A_TOV read-only memory redundancy redundant array of independent disks remote notification rerouting delay resource allocation time-out value ring topology RS-232 See resource allocation time-out value. ROM. An information storage chip with permanent memory. Stored information cannot be changed or deleted except under special circumstances (D). Contrast with random access memory. 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/7 days per week) computer systems and networks. RAID. Grouping of hard drives in a single system to provide greater performance and data integrity. RAID systems have features that ensure data stored on the drives are safe and quickly retrievable. A process by which a system is able to inform remote users of certain classes of events that occur on the system. E-mail notification and the configuration of simple network management protocol (SNMP) trap recipients are two examples of remote notification programs that can be implemented on director-class switches. An option that ensures that frames are delivered in order through the fabric to their destination. R_A_TOV. R_A_TOV is a 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. A logically circular, unidirectional transmission path without defined ends, in which control is distributed or centralized (D). See also token ring. The Electronic Industry Association (EIA)-recommended specification for asynchronous serial interfaces between computers and communications equipment. It specifies both the number of pins and type of connection, but does not specify the electrical signals (D). S SAN See storage area network; system area network. g-35

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g-35
Glossary
R_A_TOV
See
resource allocation time-out value
.
read-only memory
ROM. An information storage chip with permanent memory. Stored
information cannot be changed or deleted except under special
circumstances
(D)
.
Contrast with
random access memory
.
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/7 days per week) computer systems and
networks.
redundant array of
independent disks
RAID. Grouping of hard drives in a single system to provide greater
performance and data integrity. RAID systems have features that
ensure data stored on the drives are safe and quickly retrievable.
remote notification
A process by which a system is able to inform remote users of certain
classes of events that occur on the system. E-mail notification and the
configuration of simple network management protocol (SNMP) trap
recipients are two examples of remote notification programs that can
be implemented on director-class switches.
rerouting delay
An option that ensures that frames are delivered in order through the
fabric to their destination.
resource allocation
time-out value
R_A_TOV. R_A_TOV is a 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.
ring topology
A logically circular, unidirectional transmission path without defined
ends, in which control is distributed or centralized
(D)
.
See also
token
ring
.
RS-232
The Electronic Industry Association (EIA)-recommended
specification for asynchronous serial interfaces between computers
and communications equipment. It specifies both the number of pins
and type of connection, but does not specify the electrical signals
(D)
.
S
SAN
See
storage area network
; system area network.