On Sat, 16 Jun 2007, David Greaves wrote: > Neil Brown wrote: > > On Friday June 15, wakko@xxxxxxxxxxxx wrote: > > > > > As I understand the way > > > raid works, when you write a block to the array, it will have to read all > > > the other blocks in the stripe and recalculate the parity and write it > > > out. > > > > Your understanding is incomplete. > > Does this help? > [for future reference so you can paste a url and save the typing for code :) ] > > http://linux-raid.osdl.org/index.php/Initial_Array_Creation i fixed a typo and added one more note which i think is quite fair: It is also safe to use --assume-clean if you are performing performance measurements of different raid configurations. Just be sure to rebuild your array without --assume-clean when you decide on your final configuration. -dean - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
