On Thu, 2009-03-12 at 09:52 -0500, Eugene Vilensky wrote: > Greetings, > > NetApp requires for best performance that all partitions be aligned to > 4k boundaries to prevent "partial writes" and lost IOPS. We are using > LVM on un-partitioned devices. The only response I can get out of > NetApp is that, by not having a partition, the partition itself is not > mis-aligned. You need to make sure that the extents on the PV have the correct alignment. > We are using a blocksize of 4096b for ext3. > > Is there another "allocation" setting that we need to select for LVM > specifically, to ensure alignment to this 4k NetApp boundary? See this thread on lvm-devel last month: https://www.redhat.com/archives/lvm-devel/2009-January/msg00148.html Regards, Bryn. _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
