Scsi I/O Module - HP 201723-B21 - StorageWorks Modular SAN Array 1000 Hard Drive Reference Manual

MSA1000 Hardware Components

SCSI I/O Module

This element performs several functions, including monitoring the enclosure
operation, detecting and indicating errors, providing I/O connectors, and
displaying enclosure status.
EMU functions include:
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For more information on the SCSI I/O module, including installation and removal
and status indicators, refer to the HP StorageWorks 1000 Modular Smart Array
Maintenance and Service Guide.
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Monitoring the power supply voltages
Monitoring the power supply and enclosure temperatures
Monitoring the presence and status of hard drives
Detecting and reporting element changes in the enclosure and showing the
addition or removal of a hot-pluggable component
Controlling drive status indicators
Providing expansion ports for external HP StorageWorks enclosures
HP StorageWorks 1000 Modular Smart Array Reference Guide