RMAN Backup Perfroms Poorly using Native Async IO
Last updated on OCTOBER 27, 2016
Applies to:Oracle Server - Enterprise Edition - Version 10.2.0.3 and later
RMAN backups are running extremely slowly.
Native async IO is being used.
Tests of a backup validate confirm that most of the time is spent READING the input files.
If async io is simulated by using disk io slaves, then backup speed is very fast.
Sign In with your My Oracle Support account
Don't have a My Oracle Support account? Click to get started
Million Knowledge Articles and hundreds of Community platforms