IBM RedBooks SAN24B-5, Installation, Service And User Manual

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Diagnostic testing
In addition to POST, the Fabric OS includes diagnostic tests to help you
troubleshoot the hardware and firmware. This includes tests of internal connections
and circuitry, fixed media, and the transceivers and cables in use.
The tests are implemented by command, either through a Telnet session or through
a console set up through a serial connection to the switch. Some tests require the
ports to be connected by external cables, to allow diagnostics to verify the
serializer/deserializer interface, transceiver, and cable. Some tests require loopback
plugs.
Diagnostic tests are run at link speeds of 2, 4, 8, or 16 Gbps (FC) depending on the
speed of the link being tested and the type of port.
Note: Diagnostic tests might temporarily lock the transmit and receive speed of
the links during diagnostic testing.
For information about specific diagnostic tests, see the Fabric OS Troubleshooting and
Diagnostics Guide .
SAN24B-5 management
You can use the management functions built into the SAN24B-5 to monitor the
fabric topology, port status, physical status, and other information to help you
analyze switch performance and to accelerate system debugging.
The switch automatically performs power-on self-test (POST) each time it is turned
on. Any errors are recorded in the system error log. For more information about
POST, see “POST and boot specifications” on page 28.
For information about upgrading the version of Fabric OS installed on your switch,
see the
Fabric OS Administrator’s Guide . You can manage the switch using any of
the management options listed in Table 6. Please refer to the Fabric OS Command
Reference Manual for more information on the CLI commands.
Table 6. Management options for the SAN24B-5
Management tool Out-of-band support In-band support
Command Line Interface (CLI)
For more information, refer to the
Fabric OS Administrator’s Guide and the
Fabric OS Command Reference Manual .
Ethernet or serial
connection IP over Fibre Channel
Web Tools
For information, refer to the Web Tools
Administrator’s Guide .
Ethernet or serial
connection IP over Fibre Channel
Standard SNMP applications
For information, refer to the MIB
Reference Manual .
Ethernet or serial
connection IP over Fibre Channel
Management Server
For information, refer to the Fabric OS
Administrator’s Guide and the Fabric OS
Command Reference Manual .
Ethernet or serial
connection Native in-band interface
(over HBA only)
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SAN24B-5 Installation, Service, and User Guide