2012/7/5 Roberto Spadim <roberto@xxxxxxxxxxxxx>: > nice, just another question... > since this use mixed raid disks (different types) could we improve > the algorithm to diferent hard disk speed, for example a raid1 with > 7200 and 15000 rpm? > the distance continue the same but it will include a 'speed' factor > speed=1/rpm > (distance*speed) > or something to select fastest disk in the array > i don´t want to use write-mostly since it can reduce my total number > of read disks, but with this we could use the fastest disk with more > frequency without lose array 'speed' Legitimate optimization, however detecting hard disk speed is hard. Or maybe you want to add an option to tell kernel the disk speed? Thanks, Shaohua -- 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