𝗕𝗮𝗰𝗸𝘂𝗽 𝗥𝗲𝘀𝘁𝗼𝗿𝗲 𝗜𝘀 𝗔 𝗟𝗶𝗲
I ran a system with hundreds of nodes. Standard backup tools failed. Restores left the system in a mess. Some nodes had old data. Others had new data. This caused crashes.
I tried Veritas NetBackup. It failed too. The tool missed nodes. It saved wrong data. The system scale was too large.
I changed the approach. Do not backup your whole system at once. Backup individual parts instead. I used rsync for nodes. I used etcd for state and consistency. I wrote custom scripts to automate the process.
The results:
- System uptime rose by 30%.
- Recovery time dropped by 50%.
- Restores took under one hour.
You should learn from my mistakes:
- Change small parts.
- Test in isolation.
- Automate everything.
- Use Prometheus and Grafana for monitoring.