76
If a Port LED Is Off
If a Port LED Is Off
If
a
Port LED is off where a cable is connected, find the symptom that best describes the
situation, then attempt the solution. When more than one solution is possible, the most
likely one is listed first.
If
all
port LEDs are off where cables are connected, see If Firmware Upgrade Appears to
Fail on page 79.
Symptom
Cause/Solution
The host cannot access the
device, and the Port LED is off.
– The port is bypassed in Fibre Channel Manager. If you are
using Fibre Channel Manager to manage the hub, verify
that the port in question is enabled. (See the
HP Fibre
Channel Manager User Manual
for more information.)
–
The device is faulty or offline.
Verify that the device is
turned on and has successfully completed its self-test.
–
The device is incompatible with the hub.
Replace with
a non-OFC, short-wave, 1063-Mbps FC-AL device.
The device is good, and the Port
LED comes on when a loopback
cable is connected to the hub
port.
– The cable is incompatible with the hub. Replace the cable
with a 50 or 62.5-micron multimode fiber optic cable.
– A short-wave port is connected to the long-wave port on
another hub. When cascading hubs, only connect long-
wave ports to long-wave ports and short-wave ports to
short-wave ports. Reconnect the hubs accordingly.
–
The connector is dirty.
Clean both ends of the cable with
high purity alcohol and wipe with a soft, lint-free cloth (see
chapter 5, Maintenance and Replacement).
–
The cable is bent or broken.
Replace the cable.
The Port LED remains off when a
loopback cable is connected to
the hub port.
–
The hub port is dirty.
Try cleaning the port by gently
blowing with clean, dry compressed air (see chapter 5,
Maintenance and Replacement). Reattach the loopback
cable and see if the Port LED is on.
–
The hub port is faulty.
Replace the hub.
Summary of Contents for A3724A - SureStore E Hub S10
Page 1: ...Hewlett Packard SureStore E Hub Models S10 and L10 Service and User Manual ...
Page 2: ......
Page 8: ...6 Regulatory Statements 110 Laser Safety 113 Glossary 117 Index 121 ...
Page 12: ...10 ...
Page 68: ...66 Viewing Hub Information ...
Page 86: ...84 If Firmware Upgrade Appears to Fail ...
Page 114: ...112 Regulatory Statements E VCCI Statement Japan ...
Page 118: ...116 Laser Safety Declaration of Conformity ...
Page 122: ...120 Glossary ...
Page 130: ...128 Index ...
Page 133: ......