Specifications

GL–15
Compaq HSG80 Array Controller ACS Version 8.4 Configuration and CLI Reference Guide
other controller The controller in a dual-redundant pair that is connected to the controller serving
your current CLI session.
See also this controller.
outbound fiber One fiber in a link that carries information away from a port.
parallel data
transmission
A data communication technique in which more than one code element (for
example, bit) of each byte is sent or received simultaneously.
parity A method of checking if binary numbers or characters are correct by counting the
ONE bits. In odd parity, the total number of ONE bits must be odd; in even parity,
the total number of ONE bits must be even.
parity bit A binary digit added to a group of bits that checks to see if errors exist in the
transmission.
parity check A method of detecting errors when data is sent over a communications line. With
even parity, the number of ones in a set of binary data should be even. With odd
parity, the number of ones should be odd.
participating mode A mode within an L_Port that allows the port to participate in loop activities. A port
must have a valid AL_PA to be in participating mode.
PCM Polycenter Console Manager.
PCMCIA Personal Computer Memory Card Industry Association. An international association
formed to promote a common standard for PC card-based peripherals to be
plugged into notebook computers. The card commonly known as a PCMCIA card is
about the size of a credit card.
parity A method of checking if binary numbers or characters are correct by counting the
ONE bits. In odd parity, the total number of ONE bits must be odd; in even parity,
the total number of ONE bits must be even. Parity information can be used to
correct corrupted data. RAIDsets use parity to improve the availability of data.
parity bit A binary digit added to a group of bits that checks to see if there are errors in the
transmission.