Database Reliability Engineering – How to decide RAID for your Database Infrastructure ? What is RAID?
RAID stands for Redundant Array of Independent Disks (Originally, the term RAID was defined as Redundant Array of Inexpensive Disks). The name indicates that the disk drives are independent, and are multiple in number. RAID storage uses multiple disks in order to provide fault tolerance, to improve overall performance, and to increase storage capacity in a system. This is in contrast with older storage devices that used only a single disk drive to store data.How the data is distributed between these drives depends on the RAID level used. The main advantage of RAID, is the fact that, to the operating system the array of disks can be presented as a single disk.RAID is fault tolerant because in most of the RAID level’s data is redundant in multiple disks, so …[Read more]