Posts Tagged: parity

Microsoft’s Steve Sinof­sky has writ­ten a detailed art­icle about a genu­inely excit­ing new fea­ture of Win­dows 8 — Stor­age Spaces.  I won’t repeat the details here, for those you can go straight to the horses mouth.  How­ever I will point out a key line from a home media serv­er point of view: “There’s anoth­er resi­li­ency attrib­ute, called par­ity, which dir­ects Stor­age Spaces to store some redund­ancy inform­a­tion along­side user data con­tained with­in the space, thereby enabling auto­mat­ic data recon­struc­tion in the event of phys­ic­al disk fail­ure.”  To me, this sounds a LOT like a soft­ware RAID5 sim­il­ar to that provided by UnRAID.  Until Win­dows 8 is released and the tech­no­logy is fully reviewed the details are of course some­what spec­u­lat­ive, but my read­ing of the art­icle leads me to believe that Stor­age Spaces will enable the strip­ing of disks, with a par­ity in the event of single disk fail­ure.  Fur­ther, it is reas­on­able to assume that this sys­tem will work with stand­ard non-enter­prise drives without suf­fer­ing any com­pat­ib­il­ity issues.  Finally, it is reas­on­able to assume that Stor­age Spaces will offer some of the per­form­ance bene­fits of hard­ware raid‑5 too.  If you have a home serv­er with a lot of media and you want some redund­ancy, without huge cost, then this tech­no­logy sounds like it might be the per­fect solu­tion.  Thanks Microsoft!