Dell Brocade Adapters Troubleshooting Manual page 28

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Gathering problem information
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Determine what has changed in the SAN. For example, if the SAN functioned without problems
before installing the adapter, then the problem is most likely in the adapter installation or
configuration, adapter hardware, or adapter driver package. Other examples of things to
investigate might be changes in the connected switch or storage system firmware, or an offline
switch.
For stand-up adapters, investigate disconnected or faulty cables between the adapter, switch,
or storage controller fiber optic ports. Check if target storage devices are correctly connected
to the switch and are turned on.
For mezzanine or expansion card adapters, make sure that the adapter, the blade server
where the adapter is installed, and the modules in the blade system enclosure that support
adapter operation are compatible. Verify that the blade server and modules that support
adapter operation are installed in the appropriate enclosure bays. Also check whether target
storage devices are connected to the appropriate switch, interconnect module, or I/O module
in the blade system enclosure and are turned on.
Record the time and frequency of symptoms and the period of time symptoms have been
observed.
Determine if unexpected behavior is intermittent or always present.
List steps that have been taken to troubleshoot the problem, including changes attempted to
isolate the problem.
Brocade Adapters Troubleshooting Guide
53-1002145-01