On 20/01/15 00:50, James wrote: > Bill Kenworthy <billk <at> iinet.net.au> writes: > > >>> Am 19.01.2015 um 09:32 schrieb Bill Kenworthy: > >>>> Can someone suggest what is causing a balance on this raid 1 > > Interesting. > I am about to test (reboot) a btrfs, raid one installation. > >> Brilliant, you have hit on the answer! - The ancient 300GB system disk >> was sda at one point and moved to sdb - possibly at the time I changed >> to using UUID's. Ive just resized all the disks and its now moved past >> 300G for the first time as well as the other two falling in step with >> the data moving. > > I was wondering what my /etc/fstab should look like using uuids, raid 1 and > btrfs. > > Could you post your /etc/fstab and any other modifications you made to > your installation related to the btrfs, raid 1 uuid setup? > > I'm just using (2) identical 2T disks for my new gentoo workstation. > >> I moved to UUID's as the machine has a number of sata ports and a PCI-e >> sata adaptor and the sd* drive numbering kept moving around when I added >> the WD red. > > > Eventually, I want to run CephFS on several of these raid one btrfs > systems for some clustering code experiments. I'm not sure how that > will affect, if at all, the raid 1-btrfs-uuid setup. > > > TIA, > James > > > >
Sorry about the line wrap: rattus backups # lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 1.8T 0 disk sdb 8:16 0 279.5G 0 disk ├─sdb1 8:17 0 100M 0 part ├─sdb2 8:18 0 8G 0 part [SWAP] └─sdb3 8:19 0 271.4G 0 part / sdc 8:32 0 1.8T 0 disk /mnt/vm sdd 8:48 0 1.8T 0 disk sde 8:64 0 1.8T 0 disk rattus backups # rattus backups # blkid /dev/sda: UUID="f5a284b6-442f-4b3d-aa1a-8d6296f517b1" UUID_SUB="9003b772-3487-447a-9794-50cf9880a9c0" TYPE="btrfs" PTTYPE="dos" /dev/sdc: UUID="f5a284b6-442f-4b3d-aa1a-8d6296f517b1" UUID_SUB="20523d9d-3d90-439e-ad68-62def0824198" TYPE="btrfs" /dev/sdb1: UUID="cc5f4bf7-28fc-4661-9d24-a0c9d0048f40" TYPE="ext2" /dev/sdb2: UUID="dddb7e60-89a9-40d4-bf6b-ff4644e079e9" TYPE="swap" /dev/sdb3: UUID="04d8ff4f-fe19-4530-ab45-d82fcd647515" UUID_SUB="72134593-8c9f-436f-98ce-fbb07facbf35" TYPE="btrfs" /dev/sdd: UUID="f5a284b6-442f-4b3d-aa1a-8d6296f517b1" UUID_SUB="2ca026f7-e5c9-4ece-bba1-809ddb03979b" TYPE="btrfs" rattus backups # rattus backups # cat /etc/fstab UUID=cc5f4bf7-28fc-4661-9d24-a0c9d0048f40 /boot ext2 noauto,noatime 1 2 UUID=04d8ff4f-fe19-4530-ab45-d82fcd647515 / btrfs defaults,noatime,compress=lzo,space_cache 0 0 UUID=dddb7e60-89a9-40d4-bf6b-ff4644e079e9 none swap sw 0 0 UUID=f5a284b6-442f-4b3d-aa1a-8d6296f517b1 /mnt/btrfs-root btrfs defaults,noatime,compress=lzo,space_cache 0 0 UUID=f5a284b6-442f-4b3d-aa1a-8d6296f517b1 /home/wdk btrfs defaults,noatime,compress=lzo,space_cache,subvolid=258 0 0 UUID=f5a284b6-442f-4b3d-aa1a-8d6296f517b1 /mnt/backups btrfs defaults,noatime,compress=lzo,space_cache,subvolid=365 0 0 UUID=f5a284b6-442f-4b3d-aa1a-8d6296f517b1 /mnt/vm btrfs defaults,noatime,compress=lzo,space_cache,subvolid=14916 0 0 rattus backups #