MAP5340 CKD read data failure

You are here to resolve a Data Path failure that has been logged with one of the SRC values listed below. An action to repair hardware or microcode is necessary. The action may require the repair of another serviceable event that needs repair. The failure may have caused customer data to be unreadable. If this occurs the customer must restore the data after the hardware or microcode repair action is complete.

About this task

This MAP isolates for the following SRCs:
  • SRC BE35334B, physical address validation error.
  • SRC BE35334C, third or later repeat of physical address validation error on the same physical address.
  • SRC BE354970, second occurrence of physical address validation error on the same physical address.
These are customer data physical address validation errors. Data transferred from a DDM to cache memory did not have the expected physical address. There are two possible causes of this failure:
  • Data may have been read from the wrong track, volume or array.
  • The data that was read, may have originally been written to the wrong track, volume or array.

MAP5340 Section-1

Procedure

Locate and repair any related serviceable events that need repair. The following lists the most likely repair activities.
  1. Locate and repair any related problems.
  2. Have the customer restore the data after the hardware problem has been resolved.