On 2/18/2015 9:39 PM, Chris Murphy wrote: > You might be a candidate for LVM integrated raid. It uses the md > kernel code on the backend, but it's all LVM tools to create, manage > and monitor. The raid level is defined per LV, instead of all LV's in > a VG inheriting the underlying raid. It supports all levels of raid > including 5/6. ... ... > ... > ... ... btrfs ... actually, I prefer zfs. I was just saying how I do it on CentOS, where zfs is not really an option. # zpool create zbig mirror hd10 hd11 mirror hd12 hd13 mirror hd14 hd15 mirror hd16 hd17 mirror hd18 hd19 spare hd20 hd21 # zfs create -o mountpoint=/mystuff zbig/mystuff done. .... but, is that lvm integrated raid stuff available in RHEL/CentOS 6 or 7 yet ? -- john r pierce 37N 122W somewhere on the middle of the left coast