In last month, one engineer of our customers made a mistake and changed the file permissions of the ...
How to fix permission issues of Oracle RAC?
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Some issues during the Oracle RAC installation on openSUSE 15.2
In last week, I installed an Oracle RAC on openSUSE 15.2 and got some issues. Although the installat...
Install Oracle 11gR2 on RHEL8
First of all, I do not recommend to install Oracle 11gR2 on RHEL8, especially in the production envi...
Archivelog backups were not removed per backup policy
Suddenly our support guys found some archivelog backups were not deleted even they were not needed b...
Talking about ‘recovery window of 7 days’
Sometimes we will keep the database backup for one week and set the retention policy to 'recovery wi...
ORA-27102 out of memory on a system with huge memory
Today one customer said the data sync of Oracle Dataguard had issue and our guys checked the alert l...
Maybe a dangerous configuration of ASM diskgroup with Normal Redundancy
These days my friend Zhiguo discussed with me about the vote disk issue of Normal Redundancy ASM dis...
Key points for Oracle RAC patching
Several weeks ago I patched a 12.2 Oracle RAC and got several issues, I realized there were some key...
VirtualBox VM caused system hung after laptop upgrade
In last week I upgraded my laptop from T420s to E485 to get maximum 32G memory also because the T420...
How to restore a database with hot backup and without resetlogs?
Normally when we restore the hot backup of a database, we will recover and open it with resetlogs op...
