On Fri, 2010-04-09 at 11:21 +1200, Solor Vox wrote: > On 9 April 2010 11:07, Craig Falconer <cfalco...@totalteam.co.nz> wrote: > > > Nice - I saw somewhere that the likelyhood of losing a second drive > > increases exponentially once one has failed or started erroring. > > > > One way to reduce that risk is to assemble the raid on drives of different > > brands/models or different production runs. Then again... that seagate > > firmware bug last year affected many models/sizes > > > > -- > > Craig Falconer > > > > > > Good point Craig, also that using linux md raid allows you to use any > controller you want. So if you controller dies you can still get your > data off any machine with room for the drives. Plus, RAID5 software > can actually be FASTER on software since the CRC parity is done on the > processor vs slower raid controller board. (I've read some controllers > can off-load that to CPU but that's not supported well in Linux) > > And, software RAID can do cool stuff like odd number of RAID10 disks. :) > > sV > Only if you're careful. Many BIOSes will recognise raid controllers with fake ( aka Windows ) raid functionality, and automagically install support for it.
So be real careful what raid support you install in your kernel, and which modules you blacklist. Steve. -- Steve Holdoway <st...@greengecko.co.nz> http://www.greengecko.co.nz MSN: st...@greengecko.co.nz GPG Fingerprint = B337 828D 03E1 4F11 CB90 853C C8AB AF04 EF68 52E0
