Do you think configuring Hard drives for RAID will ever be popular for desktop computers?
Posted: Thu Jun 11, 2009 8:46 pm
Yes I think Raid 5 will be popular when hard drives are more cheaper since you need 3 HD for raid 5 to work, and more low-mid end motherboard supports it. It sllows striping and can automatically backup your data if one drives fails your data is safe, but if all drives fails because of a bad power supply or lightning striking your motherboard then everything is gone.
Raid 0 is kind of risky since if one drives fails. Everything is gone. Raid 1 does not offer striping. It just offers Redundancy.
RAID 5 Definition:
Raid 0 is kind of risky since if one drives fails. Everything is gone. Raid 1 does not offer striping. It just offers Redundancy.
RAID 5 Definition:
Source:: http://www.pcguide.com/ref/hdd/perf/rai ... el5-c.htmlTechnique(s) Used: Block-level striping with distributed parity.
Description: One of the most popular RAID levels, RAID 5 stripes both data and parity information across three or more drives. It is similar to RAID 4 except that it exchanges the dedicated parity drive for a distributed parity algorithm, writing data and parity blocks across all the drives in the array. This removes the "bottleneck" that the dedicated parity drive represents, improving write performance slightly and allowing somewhat better parallelism in a multiple-transaction environment, though the overhead necessary in dealing with the parity continues to bog down writes. Fault tolerance is maintained by ensuring that the parity information for any given block of data is placed on a drive separate from those used to store the data itself. The performance of a RAID 5 array can be "adjusted" by trying different stripe sizes until one is found that is well-matched to the application being used.