Occasionally, after the PowerExchange Logger switches active log data sets, user abend U3035 occurs in a log reader subtask that is reading data from the new active log data set. The reason for these abends is that an HSPSERV SREAD operation returned a page that contains all zeros for a page that was previously read. This problem is described in IBM APAR OW56713. The PowerExchange Logger can detect this condition and retry the HSPSERV SREAD operation up to 100 times. Message PWXEDM172779W is issued each time a retry is required. The found RBA value will most likely be 0.
If the condition persists after 100 retries, the log reader subtask of the PowerExchange Logger abends with user abend code U3035 and reason code 00D6FF14. However, the PowerExchange Logger address space will
not
terminate, and the PowerExchange Logger will continue writing data that it receives from ECCRs to the active log.
