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Table 9. IBM c-type SAN switches and directors 24/10 Port SAN Extension Module
LEDs (continued)
Link
Solid green
Link is up.
Steady Flashing Green
Port Beacon On (beacon is
used to identify port).
Intermittent Flashing Green
Link is up (traffic on port).
Solid Orange
SFP not present or admin is
down.
Flashing Orange
A fault condition exists.
Off
The port is not active or the
link is not connected.
Fan Modules
This section describes the fan modules present in the IBM c-type SAN switches
and directors.
One fan can fail without affecting the thermal performance of the system.
Redundant fan controllers and other internal mechanisms are in place to ensure
that any single fan module does not go down.
Any single fan can fail and the system continues to operate under all conditions.
Two fan failures might cause alarms from ASIC when temperature exceeds the
threshold. At 86 degrees F (30° C) or less, a single fan module can be removed and
the system can continue to operate up to 72 hours to allow for replacement of a
failed fan module. When the temperature exceeds the threshold, the device
automatically shuts down in 3 minutes.
SAN768C-6 Fan Modules
The SAN768C-6 has three fan modules, each with six fans, that are installed
vertically at the back of the chassis. Each fan module can be removed while the
other two fan modules continue to move air through the chassis.
The fan modules cover the fabric modules in the back of the chassis. Fan module 1
must be removed to access fabric modules 1 and 2, fan module 2 must be removed
to access fabric modules 3 and 4, and fan module 3 must be removed to access
fabric modules 5 and 6.
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SAN192C-6, SAN384C-6 and SAN768C-6 Installation, Service, and User Guide
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