Originally Posted by bigredseo
We have used both RAID 10 and RAID 50 setups, and when it comes to reliability, we wouldn't look back. There are additional things like having more frequently accessed data on Solid State drives (such as MySQL) and then RAIDing those too.
As others have a said, there are other ways of making backups, but the time it takes for a backup to restore can crush some businesses.
We currently work with a client that does between 3.5M and 4M per week - just 15 minutes of downtime can really hurt their business. But then, they're also running on a cloud system so they can enable and disable additional servers to handle the load as needed.
Looks interesting and useful.