Posted: Sat Dec 30, 2006 3:06 pm Post subject: Information on Raid
Raid stands for Redundant array of independent/individual/inexpensive disks.
The basic Raid configuration is Raid 0 and Raid 1.
Raid 0 : Striping : Here the data is divided evenly between two Hdd and is much quicker to retrieve. Drawback: If one Hdd fails we loose the entire data. Advantage : Faster than any Raid 1 and optimal performance.
Raid 1 : Mirroring : Here the data ia backed up continously on the second Hdd. even if the primary Hdd fails , data is safe as its backed on the second Hdd. Drawback : Slower than Raid 0. Advantage : Data is backuped continously.
Because the data is divided between the two drives so can be read from both at the same time so 2x the speed but if one drive fails half the data is missing so will not work at all...