Sun Microsystems StorEdge S1 AC100, Installation And Maintenance Manual

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72 StorEdge S1 AC100 and DC100 Installation and Maintenance Manual • March 2002
Back Panel LEDs
FIGURE 5-4
Back Panel LEDs
System Power and System Summary Fault LEDs
The System Power and System Summary Fault LEDs give the same diagnostic
information as the System Power and System Summary Fault LEDs at the front of
the enclosure. Refer to
TABLE 5-1
for more information.
Auto-termination Indication LEDs
The Auto-termination Indication LEDs indicate if the StorEdge S1 storage enclosure
is part of an UltraSCSI, wide SCSI, or narrow SCSI daisy-chain. They also indicate
the enclosure’s position in the daisy-chain.
TABLE 5-3
Auto-termination Indication LEDs and Their Meanings
High Low Meaning
Off Off The StorEdge S1 enclosure is the first device in the UltraSCSI or wide
SCSI daisy-chain; another device follows the StorEdge S1 enclosure.
On On The StorEdge S1 storage enclosure is the last or only device in the
UltraSCSI or wide SCSI daisy-chain.
On Off A narrow SCSI device follows the StorEdge S1 storage enclosure in the
daisy-chain.
Off On N/A
System Power LED
System Summary Fault LED
Auto-termination
Indication LEDs