Loss of database

To avoid loss of database data, you can backup your databases on an external storage device.

Losing the disks that the database files are implemented on will result in the loss of the database data. You can protect your data by ensuring that the database files are stored on external redundant storage. These devices range from entry-level storage devices (like Dell's PowerVault MD1000) to high-end SAN storage devices (like EMC Symmetrix).