Xyratex RS-1600-FC-FFX2, Инструкция по установке и эксплуатации

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RS-1600-FC-FFX2 User Guide
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Hot plugging A device with the capability of being connected to a subsystem without interrupting the
power supplies to that subsystem.
Hot swap Hot swapping is the term used for manually swapping a failed disk unit with a replacement
while the RS-1600-FC-FFX2 subsystem is in normal use.
Hz (Hertz) a frequency measurement unit used internationally to indicate cycles per second.
Initialize To prepare a hardware device for use.
LED Light Emitting Diode. A small light displayed on the cabinet, disk units and power supply units.
LRC Loop Resiliency Circuit: Circuits within the I/O modules which provide loop resiliency in the event
of a drive failing or being unplugged.
LRC I/O module A plug-in module used to connect the internal FC--AL channels from the RS-1600-FC-
FFX2 backplane to the rear of the enclosure.
Module (power supply, drive, LRC I/O) A module is a power supply, disk drive or electronics unit held
in a carrier that plugs into a bay inside the enclosure. A RS-1600-FC-FFX2 enclosure can contain sixteen
drive modules, two power supply/cooling modules and two LRC I/O modules.
Operating system The software running the host computer. For example, on PCs it is often Windows
95/98, Windows NT or OS/2 and on Hewlett-Packard machines it could be HP-UX.
Parallel Transmission The transfer of data characters using parallel electrical paths for each bit of the
character, for example, 8 paths for 8-bit characters. Data is stored in computers in parallel form, but may
be converted to serial form for certain operations. See Serial Transmission.
Power Cord Throughout this RS-1600-FC-FFX2 user guide this term is used in accordance with the
preferred US context of: “an insulated flexible electric wire fitted with connectors at each end and used
for the transmission of electrical power to computer equipment.
Protocol A system of rules and procedures governing communications between two or more devices.
Protocols vary, but communicating devices must follow the same protocol in order to exchange data. The
format of the data, readiness to receive or send, error detection and error correction are some of the
operations that may be defined in protocols.
Redundant Not essential.
Serial Transmission The transfer of data characters one bit at a time, sequentially, using a single
electrical path. See Parallel Transmission.
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