Backup, backup and another backup
What happens if my system is down?
Regardless of whether this is due to a short-term power failure caused by violent weather or defective hardware: In both data storage and power supply, backup is a component that should never be overlooked when implementing new applications - or maintaining existing ones - and is definitely the wrong place to cut corners!
Have you implemented a temporary power supply for short interruptions so that the system can be shut down properly, or is continuous operation ensured by a (autonomous?) emergency power supply? And if so - for how long?
Do you regularly back up your data and changes so that they are available as quickly as possible in the event of a failure? And if so - how and where is the data backed up? Cloud-based, centralized or decentralized? Are occasional, time-consuming full backups or mirroring sufficient, or should every change, no matter how small, be continuously recorded since the last full storage or backup?
Depending on the application segment and function, the answers to these questions carry more or less weight; however, you should ask yourself these questions regularly and run through various scenarios in order to optimally protect and upgrade your system against interruptions and data loss!
