Implementing or Migrating to an IBM Gen 5 b-type SAN

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Troubleshooting

This chapter describes the steps that you can take to ascertain the health of the storage area network (SAN) fabric and perform problem determination when unplanned events occur. Although it provides many troubleshooting tips and techniques, it does not teach troubleshooting methodology.

This chapter provides the following information:

•General problem determination

•Errors and symptoms

•Switch and port status

•Port errors

•System messages and RAS logs

•SAN health

•Collecting support data

•Using MAPS for problem determination

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