Beyond a single copy.
WHAT TO BACK UP
Website files and database Email Business records and documents Customer data Financial records
WHAT PEOPLE ONLY BACK UP
The website.
The rest frequently exists in one place.
WHERE TO STORE BACKUPS
Not on the same server Not only on one device At least two separate places
THE PRINCIPLE
If one event could destroy both the original and the backup, that is not a backup.
HOW OFTEN
Depends on how much you can afford to lose.
HOW MANY VERSIONS
Several, from different dates.
A single recent backup may contain a problem you have not noticed.
WHAT TO TEST
That a restore works.
Occasionally, actually do one.
WHAT PEOPLE DISCOVER
That the backup excluded something, or cannot be restored, or takes far longer than expected.
WHAT TO AUTOMATE
The backup.
WHAT NOT TO AUTOMATE AWAY
Checking it ran.
