On 10/17/2017, 4:57:10 PM, Stuart D. Gathman <stuart@gathman.org> wrote: > First off, raid10 is a linux specialty (I didn't know LVM supported it, > thanks!), Eh? Not sure what you mean by that, RAID10 is used by many hardware RAID controllers, so is certainly not some kind of esoteric linux 'specialty', unless I misunderstood. I've been using RAID10 exclusively for over 10 years ever since I narrowly avoided a major catastrophe with RAID5. > and is not the same as raid1+0 (raid1 on top of raid0). Not according to everything I've ever read about it... for example: http://www.thegeekstuff.com/2011/10/raid10-vs-raid01 > But this is not certain as raid10 works perfectly well with 2 or 3 > disks, including the redundancy. You must be talking about something else... RAID10 requires at least 4 disks, and always an even number, although most RAID controllers support the designation of at least one hot spare (so it will auto-rebuild using the hot spare in the event of a failure). Been using this configuration in my 5 drive QNAP NAS's for along time. _______________________________________________ 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/