Created: 2024-09-11 Wed 17:26

1. Proxy Cafe: the backup edition

2.

No better day to talk about disaster recovery

1 2 3

3. What is a backup

  • not "DCIM2568 - Copy.jpg"
  • not a snapshot
  • not an archive

The only defense against:

  • hardware failure, theft, loss
  • ransomware infections

3.1. Code red stories

3.2. What do you need to backup?

  • your laptop
  • your server
  • your mobile phone
  • your work laptop

3.3.

4.

Not all files are created equal

4.1.

It's a matter of life or death

4.2.

Press F to pay respect

4.3.

I cry but I'll live

4.4.

You forgot you are supposed to be an adult

4.5.

Bonus: things that you suppose are always available

5.

Software features

  • Versioning
  • Incremental backups
  • Deduplication
  • Compression
  • Encryption on transport
  • Encryption at rest
  • Error correction
  • Consistency

5.1.

What about the hardware?

  • go to the cloud someone else's computer
  • buy a NAS 🤮
  • buy a DAS and make a NAS 😎
  • buy hard drives and put them under the bed
  • dvd blu rays
  • tapes (lol)

5.2.

5.3.

Things that get confused for backups

  • file synchronization
  • raids

6. A few rule of thumbs

6.1.

Either you save money or you save data

6.2.

The 3-2-1 rule

6.3.

Always test your backups

6.4.

Go low tech