On Thu, Jun 20, 2013 at 3:10 PM, Mark Knecht <markkne...@gmail.com> wrote: > Looking for some thoughtful ideas from those more experienced in this area.
Please do share your findings. I suspect my own RAID+LVM+EXT3/4 system is not optimized - especially with LVM I have no idea how blocks in ext3/4 end up mapping to stripes and physical blocks. Oh, and this is on 4k disks. Honestly, this is one of the reasons I REALLY want to move to btrfs when it fully supports raid5. Right now the various layers don't talk to each other and that means a lot of micro-management if you don't want a lot of read-write-read cycles (to say nothing of what you can buy with a filesystem that can aim to overwrite entire stripes at a time). Rich
