2.1 KiB
2.1 KiB
Proxy Cafe: the backup edition
What is a backup
- not "DCIM2568 - Copy.jpg"
- not a snapshot
- not an archive
The only defense against:
- hardware failure, theft, loss
Rotational Velocidensitybit rot
- ransomware infections
Code red stories
What do you need to backup?
- your laptop
- your server
- your mobile phone
- your work laptop
Not all files are created equal
It's a matter of life or death
Press F to pay respect
I cry but I'll live
You forgot you are supposed to be an adult
Bonus: things that you suppose are always available
Software features
- Versioning
- Incremental backups
- Deduplication
- Compression
- Encryption on transport
- Encryption at rest
- Error correction
- Consistency
What about the hardware?
- go to
the cloudsomeone else's computer - buy a NAS 🤮
- buy a DAS and make a NAS 😎
- buy hard drives and put them under the bed
dvdblu rays- tapes (lol)
Things that get confused for backups
- file synchronization
- raids
A few rule of thumbs
Either you save money or you save data
The 3-2-1 rule
Always test your backups
Go low tech
