AI Knowledge HubServers & Infrastructure
backup
A copy kept so you can return to an earlier state after a replacement, a mistake, or a failure. A backup stored in the same place can be lost with it, so production systems keep copies across multiple locations and points in time.
One copy is rarely enough; copies across time are what make it safe.
Why it mattersA backup is the only way back after a replacement or a mistake. A copy stored in the same place can be lost along with it.
ExampleA copy kept so you can return to an earlier state after a replacement, a mistake, or a failure. A backup stored in the same place can be lost with it, so production systems keep copies across multiple locations and points in time.