The stripe width is the minimum amount of data that can be written to a raid (normally 5 or 6) without a read-modify-write operation -- the optimal minimum IO size.
Kevin On Jun 24, 2009, at 8:57 AM, Carlos Santana <neu...@gmail.com> wrote: > Hi, > > What is stripe width? The lustre manual says, <stripe_width> = > <chunk_size> * ( <disks> - <parity_disks> ) <=1 MB. I am completely > new to this field and I was looking for some RAID documentation > online. Some people have mentioned that stripe width is the number of > parallel stripes that can be written to or read from simultaneously - > this equals number of disks in an array. Some thing is wrong with my > understanding or interpretation of stripe width. Any elaboration on > this and also on MTF and repair time calculation given in the manual? > Any good guide on RAID? > > Thanks, > CS. > _______________________________________________ > Lustre-discuss mailing list > Lustre-discuss@lists.lustre.org > http://lists.lustre.org/mailman/listinfo/lustre-discuss _______________________________________________ Lustre-discuss mailing list Lustre-discuss@lists.lustre.org http://lists.lustre.org/mailman/listinfo/lustre-discuss
