ISR651101-00 G
Glossary-7
iSR6200 Intelligent Storage Router
Installation Guide
NTP
Network time protocol. NTP is used for
distributing the Coordinated Universal
Time (UTC) by means of synchronizing the
clocks of computer systems over
packet-switched, variable-latency data
networks.
NVRAM
Non-volatile random access memory.
NVRAM is a type of memory that retains
data (including configuration settings)
even when power is removed. You can
configure NVRAM settings manually or
restore them from a file.
OC
Optical carrier is a standardized set of
specifications of transmission speeds that
describe a range of digital signals that can
be carried on synchronous optical
networking (SONET) fiber optic networks.
The number attached to the optical carrier
abbreviation, OC-12, is directly propor-
tional to the data rate of the bitstream of
the digital signal.
path
A path to a device is a combination of a
adapter
and a target port as
distinct from internal paths in the fabric
network. A fabric network appears to the
operating system as an opaque network
between the adapter (initiator) and the
target.
Because a path is a combination of an
adapter and a target port, it is distinct from
another path if it is accessed through a
different adapter and/or it is accessing a
different target port. Consequently, when
switching from one path to another, the
driver might be selecting a different
adapter (initiator), a different target port, or
both.
This is important to the driver when
selecting the proper method of failover
notification. It can make a difference to the
target device, which might have to take
different actions when receiving retries of
the request from another initiator or on a
different port.
PCI
Peripheral component interface/intercon-
nect. A 32-bit local bus specification intro-
duced by Intel.
PCM
Power and cooling module. A device that
consists of one power supply and three
fans.
PID
Process identifier. A number used by some
operating system kernels (such as that of
UNIX, Mac OS X or Windows NT) to
uniquely identify a process.
ping
A computer network administration utility
used to test whether a specified host is
reachable across an IP network and to
measure the round-trip time for packets
sent from the local host to a destination
computer.
point-to-point
Also FC-P2P. Two Fibre Channel nodes
directly connected (not in a loop).
port
Access points in a device where a link
attaches. There are four types of ports, as
follows:
—a Fibre Channel port that
supports point-to-point topology.
—a Fibre Channel port that
supports loop topology.
Summary of Contents for iSR6200
Page 1: ...ISR651101 00 G iSR6200 Intelligent Storage Router Installation Guide ...
Page 20: ...Preface Technical Support xx ISR651101 00 G ...
Page 34: ...1 Introduction iSR6200 Router Blades 1 14 ISR651101 00 G ...
Page 60: ...3 Installation Installing New Firmware 3 18 ISR651101 00 G ...
Page 90: ...4 Configuration Controlling per Host LUN Access on the iSR6200 4 30 ISR651101 00 G ...
Page 110: ...5 Fibre Channel over IP Configuring FCIP 5 20 ISR651101 00 G ...
Page 128: ...7 Removal and Replacement Power and Cooling Modules 7 14 ISR651101 00 G ...
Page 134: ...A Technical Specifications Environmental and Safety A 6 ISR651101 00 G ...
Page 160: ...B Simple Network Management Protocol Notifications B 26 ISR651101 00 G ...
Page 217: ......