RAID
Table of Contents
Redundant Array of Inexpensive Disks (RAID) is a technology to build a faster, bigger, and more reliable disk system.
1. Interface and RAID Internals
RAID provides transparent interfaces to external users. When a file system issues a logical IO request to RAID, the RAID must compute which disk(s) to access, and may issue one or more physical IOs.
A RAID system is often built as a separate hardware box, with a standard connection (e.g., SCSI, SATA) to a host.