Midwest Data Recovery
Company Profile  Services  Online Evaluation  Shipping Instructions  Contact Us
Data Recovery Article
 Data Recovery Services
24 HR Emergency Service
RAID Recovery
Hard Drive Recovery
Tape Recovery
Removable Media
Compact Flash
Data Recovery Articles
Disaster Recovery Articles
Shipping Information
Contact Us
Data Recovery Home

RAID controller

From Wikipedia, the free encyclopedia.

The RAID controller is best described as a device in which servers and storage intersect. The controller can be internal to the server, in which case it is a card or chip, or external, in which case it is an independent enclosure, such as a NAS (network-attached storage). In either case, the RAID controller manages the physical storage units in a RAID system and delivers them to the server in logical units (e.g., six physical disks may be used to ensure that one drive stays correctly backed up, but the server sees only one drive).

While a RAID controller is almost never purchased separately from the RAID itself, the controller is a vital piece of the puzzle and therefore not as much a commodity purchase as the array.

A RAID (Redundant_array_of_independent(or inexpensive)_disks) system is simply a collection of disk drives that employs two or more drives in combination for fault tolerance and performance. RAID drives vary in robustness from Level 0 (data striping without redundancy) to Level 5 (data striping at the byte level with stripe error correction information).



Data Recovery Services | RAID Services | Hard Drives | Tapes | Removables | Compact Flash |
Online Evaluation | Data Recovery Articles | Disaster Recovery Articles |
About Us | Contact Us | Midwest Data Recovery
Links | Sitemap