B Glossary - Huawei OceanStor S2600 Command Reference Manual

OceanStor S2600 Storage System
Command Reference
A
Active network
port
Active/Active
Mode
Alarm buzzer
Application
server
Application
server LUN
Array LUN
B
Back-end disk
port
Baud rate
Bit error rate
Boundary scan
Issue 07 (2010-05-20)
The service port that is working currently on the AS.
The I/O operation can be performed on either of the two controllers.
A component of the controller subrack. When a critical fault occurs in
the OceanStor storage system, the alarm buzzer can generate some buzz.
The computer system that is connected to the storage system, stores
data, and implements I/O access.
The LUN that is mapped from storage devices to the application server.
To differentiate the number between the device LUN and the host LUN.
The port for the connection between the controller subrack and the disk
subrack.
The maximum rate of signal state changes per second on a
communications circuit. In low-speed communications, each signal
state corresponds to a code bit, then the baud rate and the bit rate are the
same, that is, the reciprocal of code bits in one second.
The percentage of bits that have errors relative to the total number of
bits received in a transmission.
A test methodology that uses shift registers in the output connections of
integrated circuits. One IC often is connected to the next. A data pattern
is passed through the chain and the observed returned data stream
affected by the circuit conditions gives an indication of any faults
present. The system is defined under IEEE standard 1149.1 and is also
often known as JTAG (Joint Test Action Group).
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Glossary

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