Background Media Recovery terminated with error 1111

I have dataguard configuration such as,2 node RAC(11.2.0.4) on Aix 7.1 as primary, standalone standby database. I noticed that Primary can transport archive log to standby but standby cannot apply archive log and giving errors at standby alert.log such as: MRP0: Background Media Recovery terminated with error 1111 and MRP0: Background Media Recovery process shutdown (PROD00DG) Continue reading