Digital Equipment EK-SFXXS-SG-003, Руководство по обслуживанию

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Theory of Operation 2–9
Table 2–3 summarizes the function of the controls and indicators provided
for each ISE in the storage enclosure.
Table 2–3 Operator Control Panel Functions
Control/Indicator Function
Ready switch The Ready switch is a push-to-set switch
with a green indicator. When pressed in,
the Ready switch causes the disk ISE to
come on-line. After the Ready switch is
pressed, it takes approximately 10 seconds
for the disk ISE to come on-line. The
green indicator remains lit while the disk
ISE is on-line. However, this indicator
may flicker or go out entirely when the
disk ISE is performing heavy seeks.
Write Protect switch The Write Protect switch is a push-to-set
switch with an amber indicator. When the
Write Protect switch is engaged, the data
on that disk ISE cannot be overwritten,
nor can any new data be written to that
disk ISE.
MSCP switch/FAULT indicator The MSCP/Fault switch is a recessed
switch with a multi-color indicator.
During normal operation this LED is
unlit. If the MSCP switch is pressed and
MSCP is disabled, this LED is lit green. If
the system detects a fault in the ISE, this
LED is lit red. If a fault is detected while
MSCP is disabled, this LED is lit amber.