IBM TotalStorage DS4400, Руководство пользователя

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Table 15. Host-side and drive-side mini-hub indicator lights (continued)
Icon Indicator light Color
Normal
operation
Problem
indicator
Possible condition indicated by
the problem indicator
Loop good Green On Off
v
The loop is not operational, no
devices are connected
v mini-hub has failed or a faulty
device is connected to the
mini-hub
v
If there is no SFP module
installed, the indicator will be lit
v If one functioning SFP module
is installed in the host-side
mini-hub port and there is no
Fibre Channel cable connected
to it, the loop good indicator
light will not be lit.
If one functioning SFP module
is installed in the drive-side
mini-hub port and there is no
Fibre Channel cable connected
to it, the loop good indicator
light will be lit.
v
Drive enclosure has failed
(drive-side mini-hub only)
Bypass (lower port) Amber Off On
v Lower mini-hub port is
bypassed; there are no devices
connected
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 port 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
is not lit.
However, the drive-side mini-hub
bypass indicator light will be lit
when there is one functioning
SFP module installed in the
mini-hub port and the mini-hub
has no Fibre Channel cables
connected to it.
Chapter 2. Operating the DS4400 Storage Server
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