i created a array, mkfs.btrfs -L TEST -m raid10 -d raid10 /dev/sda /dev/sdb /dev/sdc /dev/sdd btrfs-show Label: TEST uuid: 85aa9ac8-0089-4dd3-b8b2-3c0cbb96c924 Total devices 4 FS bytes used 28.00KB devid 3 size 931.51GB used 2.01GB path /dev/sdc devid 4 size 931.51GB used 2.01GB path /dev/sdd devid 2 size 931.51GB used 2.01GB path /dev/sdb devid 1 size 931.51GB used 2.03GB path /dev/sda this, /dev/sda /mnt/TEST btrfs compress,device=/dev/sdb,device=/dev/sdc,device=/dev/sdd 1 2 in /etc/fstab, mounts the array on boot. is it correct that it does NOT matter which device I actually mount, specifying the 'other' devices in the array as options? i.e., /dev/sda ... device=/dev/sdb,device=/dev/sdc,device=/dev/sdd ... /dev/sdb ... device=/dev/sda,device=/dev/sdc,device=/dev/sdd ... /dev/sdc ... device=/dev/sda,device=/dev/sdb,device=/dev/sdd ... /dev/sdd ... device=/dev/sda,device=/dev/sdb,device=/dev/sdc ... would all be equivalent? i understand (http://marc.info/?l=btrfs-devel&m=121302854724031&w=2) that i can also mount by label. ls -al /dev/disk/by-label/NAS_TEST lrwxrwxrwx 1 root root 9 2010-02-05 15:56 /dev/disk/by-label/TEST -> ../../sdd /dev/disk/by-label/TEST /mnt/TEST btrfs compress,device=/dev/sda,device=/dev/sdb,device=/dev/sdc 1 2 apparently, at device creation, the TEST-label is symlinked (arbitrarily?) to /dev/sdd, so as devices I suppose I add the "other" devices, /dev/sd[abc]. in this instance, given the symlink to /dev/sdd, do I still have the option to use any combination of "other three" devices, or am I fixed to the symlinked /dev/sdd? -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
