Operating system patching is available via Nutanix Database Service (NDB) since version 2.5 for Linux based database servers virtual machine when running database engines Oracle, PostgreSQL, and MongoDB. I just wanted to bring to your attention some additional information that was added to the NDB User guide around operating system patching yesterday, 2023-11-15, when it comes to patching rollback.
The following information is available in the NDB User Guide and the bold text is the newly added parts:
You can roll back a database server VM if the NDB OS patch operation fails.
- Automatic rollback. NDB triggers automatic rollback if the OS patch operation fails. Automatic rollback is only available for OSes using package manager YUM to apply the OS patches.
- Manual rollback. NDB takes a database snapshot before starting a patching operation. If the OS patch operation fails, you must manually restore using this snapshot.
If the NDB OS patch operation is successful but you encounter a problem with the applied patches you need to manually, from within the database server, rollback the applied patches.
Note: You must contact Nutanix Support before performing a manual rollback using the snapshot.
Hope this bring additional clarity to the operating system rollback capabilities provided by NDB.
Useful links
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