IBM TotalStorage FAStT700, User Manual

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Table 7 describes the indicator light status when there are Fibre Channel
connections to devices between host-side and drive-side mini hubs.
Table 7. Host-side and drive-side mini-hub indicator lights
Icon Indicator light Color Normal
operation Problem
indicator Possible condition indicated by
the problem indicator
None Speed Green On for 2 Gb
Off for 1 Gb not applicable Light on indicates data transfer
rate of 2Gb/s. Light off indicates
data transfer rate of 1Gb/s.
! Fault Amber Off On Mini hub has failed
Note: If a host-side mini hub is
not connected to a controller, this
fault light is always lit.
Bypass (upper port) Amber Off On
v
Upper mini-hub port is
bypassed
v
Mini hub port or SFP module
has failed or is loose
v
Fiber-optic cables are
damaged
Note: When there are two
functioning SFP modules installed
into the mini hub ports and there
are no Fibre Channel cables
connected to them, the bypass
indicator light is lit.
If there is only one functioning
SFP module installed in a
host-side mini hub port and there
are no Fibre Channel cables
connected to it, the indicator light
will not be lit.
However, the drive-side mini hub
bypass indicator light will be lit
when there is one SFP module
installed in the mini hub and the
mini hub has no Fibre Channel
cable connection.
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FAStT700 Fibre Channel Storage Server: User’s Guide