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drive blank
dual bus
dual power
dual power
configuration
electromagnetic
compliance
electromagnetic
interference
electrostatic discharge
element
EMC
EMI
EMU
enclosure
enclosure I/O module
A carrier that is required to control airflow within the enclosure whenever
there is less than a full complement of disk drives in an enclosure. The
only function of a drive blank is to control airflow within the disk
enclosure.
An enclosure that is configured with two independent buses connected to
separate controllers.
See redundant power configuration.
See redundant power configuration.
See EMC.
See EMI.
See ESD.
An object in an enclosure such as an EMU, power supply, disk, blower,
I/O module, and so forth. The object can be controlled, interrogated, or
described by the enclosure services process.
An object related to an enclosure. The object can be controlled,
interrogated, or described by the enclosure services process.
Electromagnetic Compliance.
Electromagnetic interference (EMI) is the impairment of a signal by an
electromagnetic disturbance
Environmental monitoring unit. An element which monitors the status of
an enclosure including the power, air temperature, blower status, and so
forth. It detects problems and displays and reports these conditions to the
user and the controller. In some cases, corrective actions are
implemented.
A chassis containing a set of disk drives, power supplies, blowers, an
EMU, I/O modules, and so forth.
The enclosure element that connects the enclosure to a differential or
single-ended SCSI bus.
See also differential I/O module and single-ended I/O module.
Glossary–3
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