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Type 3523 Fibre Channel Hub and
GBIC
General Checkout
Installation and operational problems in an arbitrated loop
environment are typically caused by one of the following:
Faulty cabling or cable connector
Incorrect cable length
Faulty GBIC
Invalid Fibre Channel signaling from the host bus
adapter (HBA) or disk array
Device driver or microcode conflicts between the
HBAs and other devices.
The following information will help you to isolate and
correct the physical layer problems. For protocol-related
problems, such as inoperability between devices, see the
documentation that came with the individual devices.
Port Status LEDs
The hub provides two status LEDs for each port.
Use
these LEDs to help you quickly diagnose and recover from
problems.
The upper, green LED is lit when an operational GBIC is
installed. The lower, amber LED is lit when the port is in
the bypass mode. In the bypass mode, a port is disabled,
which prevents erratic signals or data from disrupting loop
activity. The bypass mode could be triggered by the loss
of valid signal or by a GBIC fault. The combination of
green and amber LEDs indicate the four following states.
Green LED
Amber LED
Port State
Off
Off
No GBIC Installed
On
Off
Operational GBIC;
Valid Signal
Off
On
Faulty GBIC; Port
Bypassed
On
On
Operational GBIC;
No Valid Signal;
Port Bypassed
Copyright IBM Corp. 1998
3
Summary of Contents for Netfinity Series
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Page 28: ...Parts Listing Type 3523 Fibre Channel Hub GBIC 1 2 3 4 18 IBM Netfinity Fibre Channel HMM...
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Page 70: ...Notice n 1 60 IBM Netfinity Fibre Channel HMM...
Page 74: ...Declaraci n 1 64 IBM Netfinity Fibre Channel HMM...
Page 84: ...IBM Part Number 10L9845 Printed in U S A S1 L 9845...