Any errors detected during POST are written to the system log, which is
accessible through the
errShow
command. For information about error messages,
refer to the Fabric OS Message Reference.
POST includes the following steps:
Procedure
1.
Preliminary POST diagnostics are run.
2.
Operating system is initialized.
3.
Hardware is initialized.
4.
Diagnostic tests are run on several functions, including circuitry, port
functionality, ability to send and receive frames, all aspects of memory, parity,
statistics counters, and serialization.
Boot
About this task
In addition to POST, boot includes the following steps after POST is complete:
Procedure
1.
Universal port configuration is performed.
2.
Links are initialized.
3.
Fabric is analyzed. If any ports are connected to other switches, the device
participates in a fabric configuration.
4.
The device obtains a domain ID and assigns port addresses.
5.
Unicast routing tables are constructed.
6.
Normal port operation is enabled.
Using monitoring commands
This section provides example output and explanation for commands referenced in
this guide for monitoring and verifying operation of the director and various
components, such as blades, power supply assemblies, and fan assemblies.
Output for the following commands is provided:
v
switchShow
v
chassisShow
v
haShow
v
tempShow
v
psShow
v
sensorShow
v
sfpShow
v
fanShow
v
errDump
v
HistoryShow
v
SupportSave
For more detail on using these commands, refer to theFabric OS Command Reference.
For more information on error messages, refer to the Fabric OS Message Reference.
Chapter 6. Monitoring the switch
85
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