Interesting Issue with Exadata Cloud Gen-1 dropping and creating a database with same name
Robin Saikat Chatterjee
Enterprise Architect at Tata Consultancy Services, Oracle ACE Associate in Oracle Cloud, Engineered Systems and DB related technologies,
Exadata Cloud Gen-1
This Exadata bug issue is found in OCI-classic data centers around the world
Exadata CS bugs
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1. Create a database with same lower case , and delete it and try it creating with upper case cause error ,
but creating a database with uppercase and delete then create with any case it worked , there seems to be a bug with cloud console utility .
2. If the password for cloud account contains ';' at the end and when you are using it in configuring cloud storage,
it will error out,because the command is not taking ';'
After successful DB creation service, at some point oratab file was not being updated -
later the script was changed to update the oratab with the new instance
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"There is a very simple workaround if you really want to re-create a db with the same name but different case which is to "mv /var/opt/oracle/creg/.ini to /var/opt/oracle/creg/.ini.bak"
The issues were found with the following tools and have all been subsequently fixed.
dbaastools_exa-1.0-1+16.3.5.0.0EXA_160728.0100.x86_64
dbaastools_exa-1.0-1+16.4.3.0.1EXA_161115.0930.x86_64
My Oracle Support Note 2007530.1
Flexibility
Unlike an on premise Exadata machine an Exadata Cloud machine allows you to burst up and back without having to permanently increase your license burden due to the subscription nature of the service. this results in an optimal load utilization setup.
So here you can see that when we create the test service we can specify that we want to use Oracle cloud storage to store the Exadata Backups . We can also choose to keep backups in the FRA but for long term retention the Cloud storage is a better option and the backups will be scheduled from the console. Note that this requires us to all the Database backup service to our Bill of Materials , so this is something that we must ensure is there in every Oracle Cloud B.O.M that includes Exadata. We also separately need to calculate the amount of Object storage we will need to store our DB backups based on our DB size and retention policies.
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