Business backups: the 3-2-1 rule
A failed disk, a stolen laptop, ransomware or an accidental deletion: sooner or later every business needs to recover data. What matters then is having a backup that works.
The 3-2-1 rule
- 3 copies of your data: the original plus two copies.
- 2 different media: for example a NAS and an external drive or a cloud service.
- 1 copy off-site, so a fire, flood or theft doesn't take everything.
Today there's one more recommendation: at least one copy should be immutable or offline, meaning it can't be deleted or encrypted from the network, so it survives ransomware.
What to back up
- Working files and shared folders.
- Application databases: CRM, invoicing, private cloud.
- Email, if your provider doesn't already protect it.
- Device configurations: router, firewall, home automation, camera recorder.
Common mistakes
- Mistaking RAID for a backup: RAID protects against a disk failure, not deletion or ransomware.
- Syncing isn't backing up: delete a file in a synced folder and it's deleted in the cloud too.
- Never testing a restore: you don't know an untested backup works.
- Backups that depend on someone: the external drive you plug in "when I remember".
How we approach it
Automatic, scheduled backups, alerts if one fails, a copy kept off the premises and regular restore tests. All documented, so you know what's backed up, where and for how long.
Frequently asked questions
How often should I back up?
It depends on how much work you can afford to lose. For most businesses an automatic daily backup is the reasonable minimum; data that changes constantly is backed up more often.
Connect · Protect · Automate · Control
Tell us about your project
We look at what you need and propose a complete solution: one company, one point of contact, one project.
- Phone+376 356 249
- Emailinfo@knxandorra.com