This section provides an overview of some methods you can use to manage the placement of data on drives to improve performance, implement fault tolerance, or do both. For more information choose one of the following topics:
About Hardware-based Solutions
About Windows NT-based Disk Striping and Striping with Parity
About Windows NT-based Disk Mirroring and Duplexing
About SQL Server Device Mirroring
Important The fault-tolerance methods discussed in this chapter are not a replacement for proper backup strategies. You still must perform periodic backups to protect your databases and data against catastrophic loss. For information about backing up your databases, see Chapter 12, Backing Up and Restoring.