To start/stop all the instances on a server, I created a script named dbss (database start/stop) and...
Systemd service was terminated abnormally during reboot
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Will store all my database related scripts on GitHub
I will rewrite all my database related scripts and store them on the GitHub in this year. Will updat...
du: option requires an argument — ‘X’
Several days ago I encountered this little issue and I found it was very interesting. :) I got a cap...
How to create udev rules of storage devices for ASM usage
When I install the Grid Infrastructure(GI), usually I need to configure the udev rule for the storag...
Some strange behaviours of parted
Last night when I made partitions of one large 3T flash disk, I got some issues with the parted comm...
VirtualizationHow to resolve inaccessible disc images in VirtualBox?
Sometimes when I moved or deleted some operating system installation discs, I found I could not rele...
ORA-29382 or ORA-06512 during database upgrade from 11.1 to 12.1
Last year, when I was migrating/upgrading a huge Oracle database from 11.1 to 12.1, I encountered on...
host map: lookup (domain.com): deferred
This was another issue happened several days ago. In our email configuration, there was one central ...
IP name possibly forged
These days got a sendmail issue and fixed it after some research and tests, and I though it could be...
Is the RAID5 array right choice for home use?
I know the RAID5 is one of the most popular raid types in the enterprise market and I saw it in lots...
