ASM Cluster File System (ACFS)

How to Resolve ORA-00245: control file backup failed; in Oracle RAC, target might not be on shared storage

by Ed Chen
October 4, 2021March 6, 2023
2 Comments

ORA-00245 Tried to create a standby controlfile from a RAC database, but it failed with ORA-00245 or ORA-245. [oracle@primary01 ~]$ sqlplus / as sysdba ...… Read More »

How to Resolve ORA-29283: invalid file operation

by Ed Chen
July 14, 2021June 4, 2022

ORA-29283 Someone tried to use UTL_FILE.FOPEN in a stored procedure to operate a file, but it sometimes failed with ORA-29283. ORA-29283: invalid file operation: nonexistent… Read More »

How to Build Asymmetric Standby Database for Data Guard

by Ed Chen
July 14, 2019February 13, 2023
4 Comments

Asymmetric Data Guard Usually we build data guard environments with the symmetric architecture design on primary and standby servers, that is, single-instance to single-instance or… Read More »

How to Create Database on ACFS

by Ed Chen
December 13, 2018December 10, 2022

Assuming that you have created a ACFS file system for the database creation. Then you can go on reading this post. Create a Database on… Read More »

How to Create ACFS File System

by Ed Chen
October 26, 2018December 10, 2022
2 Comments

ACFS File System What is ACFS? ASM Cluster File System (ACFS) is an extension of ASM, which can mount as a file system in your… Read More »

How to Resolve Unable to setup ACFS storage for the database

by Ed Chen
May 27, 2017November 14, 2021

When I recreate a database using oakcli, it shown the following errors: ... INFO : 2017-05-20 09:25:49: Required dir /u02/app/oracle/oradata/datastore/.ACFS/snaps/testdb is already existing and… Read More »