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Table 23. Host-side and drive-side mini hub LEDs (continued)
Icon LED Color
Normal
status
Problem
status
Possible condition indicated by the
problem status
Loop good Green On Off
v The loop is not operational, so no
devices are connected.
v Mini hub has failed or a faulty device
is connected to the mini hub.
v If no SFP module is installed, the LED
will be lit.
v If one functioning SFP module is
installed in the host-side mini hub port
and no Fibre Channel cable is
connected to it, the loop good LED will
not be lit.
If one functioning SFP module is
installed in the drive-side mini hub port
and no Fibre Channel cable is
connected to it, the loop good LED will
be lit.
v Storage expansion enclosure has
failed (drive-side mini hub only).
Bypass (lower
port)
Amber Off On
v Lower mini hub port is bypassed; no
devices are connected.
v Mini hub port or SFP module has
failed or is loose.
v Fiber-optic cables are damaged.
Note:
When two functioning SFP
modules are installed into the mini hub
port and no Fibre Channel cables are
connected to them, the bypass LED is lit.
If only one functioning SFP module is
installed in a host-side mini hub port and
no Fibre Channel cables are connected
to it, the LED is not lit.
However, the drive-side mini hub bypass
LED will be lit when one functioning SFP
module is installed in the mini hub port
and the mini hub has no Fibre Channel
cables connected to it.
Chapter 4. Operating the storage subsystem 135