DFS3823 I/O ERROR DURING SURVEILLANCE READ/WRITE ON `xxxxxxxx`

Explanation

A read or write error occurred on the restart data set (RDS) while RDS surveillance was active. The variable xxxxxx has one of the following values:

IMSRDS: The error occurred on the data set defined by the IMSRDS DD statement.
IMSRDS2: The error occurred on the data set defined by the IMSRDS2 DD statement.

System action

Processing continues, but RDS surveillance stops and no longer participates in the takeover decision.

Operator response

(master terminal) Determine the cause of the I/O error and reformat the RDS, if necessary. You can do RDS formatting only when restarting the active system.