Hi, I'm the guy who lost all his VMs due to a massive configuration oversight. I'm looking to implement the remaining 4 x 3tb drives into a new fs and just want someone to look over things. I'm intending to use them for backup storage (veeam). Centos 7 Kernel 5.5.2-1.el7.elrepo.x86_64 btrfs-progs v4.9.1 mkfs.btrfs -m raid1c4 -d raid1 /dev/disk/by-id/ata-ST3000*-part1 echo "UUID=whatever /mnt/btrfs/ btrfs defaults,space_cache=v2 0 2" >> /etc/fstab mount /mnt/btrfs RAID1 over 4 disks and RAID1C4 metadata. Mounting with space_cache=v2. Any other mount switches or btrfs creation switches I should be aware of? Should I consider RAID5/6 instead? 6tb should be sufficient, so it's not like I'd get anything out of RAID5, but RAID6 I suppose could provide a little more safety in the case of multiple drive failures at once. Cheers, Justin
