IBM FAStT500 User Guide - Page 41

Component: mini-hub drive-side, Indicator light, Color, Normal, operation, Problem, indicator

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Table 4: Mini-hub indicator lights (back) Icon Indicator light Color Normal operation Problem indicator Possible condition indicated by the problem indicator Component: mini-hub (drive-side) Fault Amber Off On Mini-hub or GBIC has failed. Note: If a drive-side mini-hub is not connected to a controller, this fault light is always on. Bypass (upper port) Amber Off On • Upper mini-hub port is bypassed • Mini-hub or GBIC has failed, is loose, or is missing • Fiber-optic cables are damaged Note: If the port is unoccupied, the light is on. Loop good Green On Off • The loop is not operational • Mini-hub has failed or a faulty device might be connected to the mini-hub • Drive has failed Note: If a drive-side mini-hub is not connected to a controller, the green light is always off and the fault light is always on. Bypass (lower port) Amber Off On • Lower mini-hub port is bypassed • Mini-hub or GBIC has failed, is loose, or is missing • Fiber-optic cables are damaged Note: If the port is unoccupied, the light is on. Chapter 2. Operating the controller unit 21

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Chapter 2. Operating the controller unit
21
Component: mini-hub (drive-side)
Fault
Amber
Off
On
Mini-hub or GBIC has failed.
Note:
If a drive-side mini-hub is
not connected to a controller, this
fault light is always on.
Bypass
(upper port)
Amber
Off
On
•
Upper mini-hub port is bypassed
•
Mini-hub or GBIC has failed, is
loose, or is missing
•
Fiber-optic cables are damaged
Note:
If the port is unoccupied,
the light is on.
Loop good
Green
On
Off
•
The loop is not operational
•
Mini-hub has failed or a faulty
device might be connected to the
mini-hub
•
Drive has failed
Note:
If a drive-side mini-hub is
not connected to a controller, the
green light is always off and the
fault light is always on.
Bypass
(lower port)
Amber
Off
On
•
Lower mini-hub port is bypassed
•
Mini-hub or GBIC has failed, is
loose, or is missing
•
Fiber-optic cables are damaged
Note:
If the port is unoccupied,
the light is on.
Table 4: Mini-hub indicator lights (back)
Icon
Indicator light
Color
Normal
operation
Problem
indicator
Possible condition indicated by
the problem indicator