Solid Red The module has detected a slot
ID parity error on the mid plane.
The module can not determine its
slot number and hence will not
respond to the Supervisor.
Flashing blue The operator has activated this
LED to identify this module in the
chassis.
ID
Off This module is not being
identified.
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.
Link
Off The port is not active or the link is
not connected.
Table 10. IBM 24/10 Port SAN Extension Module LEDs (continued)
Fan Modules
This section describes the fan modules present in the IBM c-type SAN 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.
36IBM Storage Networking SAN192C-6, SAN384C-6 and SAN768C-6: SAN192C-6, SAN384C-6 and
SAN768C-6 Installation, Service, and User Guide
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