Slow Apply On the Standby and getting "Os Async I/O Limit 128 Is Lower Than Recovery Batch 1024" (Doc ID 1275773.1)

Last updated on APRIL 07, 2011

Applies to:

Oracle Server - Enterprise Edition - Version: and later   [Release: 10.2 and later ]
Information in this document applies to any platform.


When tried to start recovery on the standby database we see the following message and also observing slow apply to the standby database:

Errors in file /SANITAT/orabin/admin/DGSANPRO/bdump/dgsanpro_ora_8214.trc:
Tue Dec 14 16:35:06 2010
Warning: OS async I/O limit 128 is lower than recovery batch 1024


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