Procedure: SAN problem determination

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You can solve problems on the system and its connection to the storage area network (SAN).

About this task

SAN failures might cause system volumes to be inaccessible to host systems. Failures can be caused by SAN configuration changes or by hardware failures in SAN components.

The following list identifies some of the hardware that might cause failures:
  • Power, fan, or cooling
  • Application-specific integrated circuits
  • Installed small form-factor pluggable (SFP) transceiver
  • Fiber-optic cables

Procedure

  1. Verify that the power is turned on to all switches and storage controllers that the system uses, and that they are not reporting any hardware failures. If problems are found, resolve those problems before you proceed further.
  2. Verify that the Fibre Channel cables that connect the systems to the switches are securely connected.