It seems rather boring and obvious that having good backups is a solid place to start with disaster recovery planning. Too often we see clients with failed backups from one of the following reasons:
1. The backup drive has failed. Just like any other USB device sometimes these backup drives act up and either the server has to be rebooted or the drive unplugged and plugged back in.
2. No space. When the server's backup size is larger than the space available on the drive the backup will fail.
3. Backups have been paused. When backups are used for a disaster it's common practice to pause the backup job until the disaster is over. Occasionally the backups don't get unpaused from the last time they were used.
4. Expired LIcense. Good backup software isn't cheap, these things cost money and if the card on file expires the software can stop working.
5. Expired password. The system account that runs the scheduled backup job sometimes get a password expiration policy applied and it can't login to run the job anymore.
The backup when the backup fails to backup. Having a secondary backup system in place is an excellent guard for this sort of "cascading failure" of backups. We use virtualized system snapshots to supplement our regular backup routine. These backups are not as archival (nerd speak for they don't go back as far) but they are just as robust and capable of restoring from.
How much time is lost trying to locate a server strong enough to load your backups on? We have a variety of strategies for every budget to pre-stage servers so that we can rapidly switch the workload from a failing server to a production system.
Our free network audit will inspect your backups for the top problems that we see in dental offices.Free Backup Health Check