Take the tour ×  This question already has an answer here:  I am
buying a desktop from Dell, they have an option 2 x 500GB 7200
RPM 2.5" SATA Hard Drive with Raid 0. I Googled about Raid 0 and
found that it provides best performance.  But I am confused
about disk space I will get. If I choose 2 x 500GB with Raid 0
then what disk space I will get 500 GB or 1 TB ?  Another
question is: which will be better Raid 0 or Raid 1 ? I need good
speed and performance but at the same time I don't want my
system to be crashed.  Please check and advise, which one will
be better and what disk space I will get.  share|improve this
question add comment  marked as duplicate by Nifle, techie007,
Sathya Feb 13 at 13:37   1 Answer  RAID 0 stripes your data
across both disks. This means that every file is read from 2
places at once, giving significantly higher speed. Also, you get
essentially the sum of the two disks ' space (so around 1 TB in
that example) However, this comes at a cost - because the file
is split across both disk