Mon Dec 23 09:36:53 2019
Errors in file /u01/app/oracle/diag/rdbms/dinpay_ml/DINPAY2/trace/DINPAY2_pr0w_75098.trc:
ORA-27090: Unable to reserve kernel resources for asynchronous disk I/O
Additional information: 3
Additional information: 128
Additional information: 166197912
Warning: recovery process PR0W cannot use async I/O
Waiting for all non-current ORLs to be archived...
All non-current ORLs have been archived.
Mon Dec 23 09:36:54 2019
Media Recovery Waiting for thread 2 sequence 24783
Completed: ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION
添加以下参数：
vim /etc/sysctl.conf
fs.aio-max-nr= 3145728
sysctl -p
来源：https://www.cnblogs.com/ritchy/p/12456851.html