You will discover several regular RAID levels from RAID 0 to RAID six.
RAID 0: stripes the data across a set of drives but for those who lose a drive you lose everything RAID 1: mirrors the information to another disk usually in mirrored pairs of two RAID 3: stripes the data and has a drive just for parity RAID 5: distributes information and parity across the drives in case you lose one particular RAID six: distributes data and doubles the parity enabling for any two drive failure One of the most normally employed configuration is RAID five. As a way to have an understanding of what RAID is you must realize how the challenging drives function within your laptop or externally in an enclosure. As a way to possess a RAID configuration you'll need a minimum of three challenging disks. For our purposes we will be applying five tough drives in our configuration. The computer should have a RAID controller inside the pc on the motherboard in an effort to connect the really hard drives. The other selection would be to have an external RAID enclosure to hold the challenging disks. With 5 disks in the configuration each block of information is becoming written and spread across those 5 drives writing a marker (parity bit) in case there is a loss of a single of these drives. Inside the event of a drive failure the remaining 4 drives carry the load making use of the parity bit so it is not noticed by the end user of the personal computer. The parity bit keeps track of errors as every single block of information is written for the difficult drives. Inside the case on the loss of a second drive that could be catastrophic even for a RAID 5 configuration to handle. Commonly RAID devices have LEDs around the drive enclosures that glow red in case of drive failure. The RAID unit manufacturer should really provide alerting computer software that will operate with your operating system and also the method log to notify you of a failure at the same time. Once the failed drive is replaced the RAID unit will rebuild the data on the new drive re-establishing the RAID 5 set just like new. Recovery from the drive failure as well as the subsequent rebuild method may well take numerous hours and will degrade the efficiency of the pc until completed. Raid on motherboard is available from a couple of companies. Although not common in desktop PCs there are choices allowing you to set up external RAID enclosure with minimal effort. Find out more info intel raid recovery
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