On 12/22/07, Janek Kozicki <janek_listy@xxxxx> wrote: > Michael Tokarev said: (by the date of Fri, 21 Dec 2007 23:56:09 +0300) > > > Janek Kozicki wrote: > > > what's your kernel version? I recall that recently there have been > > > some works regarding load balancing. > > > > It was in my original email: > > The kernel is 2.6.23 > > > > Strange I missed the new raid10 development you > > mentioned (I follow linux-raid quite closely). > > What change(s) you're referring to? > > oh sorry it was a patch for raid1, not raid10: > > http://www.spinics.net/lists/raid/msg17708.html > > I'm wondering if it could be adapted for raid10 ... > > Konstantin Sharlaimov said: (by the date of Sat, 03 Nov 2007 > 20:08:42 +1000) > > > This patch adds RAID1 read balancing to device mapper. A read operation > > that is close (in terms of sectors) to a previous read or write goes to > > the same mirror. Looking at the source for raid10 it already looks like it does some read balancing. For raid10 f2 on a 3 drive raid I've found really impressive performance numbers - as good as raid0. Write speeds are a bit lower but rather better than raid5 on the same devices. -- Jon - 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
