Disk array problem identification

A disk array problem is uniquely identified by a Unit Reference Code (URC).

A Unit Reference Code (URC) is used to indicate the specific problem that has occurred. This code is required in order to determine which MAP to use.

A URC is provided in the ipr error log with each error. This URC describes the exact problem that has been detected and is considered the primary means of identifying a problem. However, the Display Hardware Status screen within the iprconfig utility is also a useful tool in identifying a problem or confirming a problem described by the error log. For additional information about this status screen, see Viewing device status.

When you have obtained the URC, you can then determine which Maintenance Analysis Procedure (MAP) to use.