The Questions are in my e-mail?! First of all the answers to your questions: - All data still accessible - cooter ~ # btrfsck /dev/disk/by-label/home1 found 242881646593 bytes used err is 0 total csum bytes: 236710380 total tree bytes: 525582336 total fs tree bytes: 219082752 btree space waste bytes: 99723364 file data blocks allocated: 284825751552 referenced 242200633344 Btrfs v0.19-16-g075587c-dirty - ofc i did a balance before the mkfs, the raid was running for some weeks now. My questions again in a short version: - Is there a way to see if the 2 devices are still running in raid1 mode? The 'btrfs filesystem show' doesn't fit to the old one (like described before) so it seems that they are now running in a non raid1 mode. - Is there a way to get those 2 devices running in raid1 mode again without creating a new filesystem, adding the second device, copying data back etc.? Regards, Felix On 07. September 2010 - 20:46, Jérôme Poulin wrote: > Date: Tue, 7 Sep 2010 20:46:19 -0400 > From: Jérôme Poulin <jeromepoulin@xxxxxxxxx> > To: Felix Blanke <felixblanke@xxxxxxxxx> > Cc: "linux-btrfs@xxxxxxxxxxxxxxx" <linux-btrfs@xxxxxxxxxxxxxxx> > Subject: Re: btrfs and raid1 (restore) > > Now that we know the facts, what is the problem? Some simple questions first; > Is the data still accessible? > What did the rebalance do? > Output of btrfsck/dmesg? > mkfs.vfat does not write much on disk so if the rebalance was also > made before the mkfs I guess most data is still present. > > Sent from my mobile device. > > On 2010-09-07, at 18:28, Felix Blanke <felixblanke@xxxxxxxxx> wrote: > > > Hi, > > > > I made a REALLY bad mistake today. > > > > I've two hdds which are running at raid1 via btrfs. Today I mistyped a device-node > > and did a "mkfs.vfat" on one of them. > > > > Then I simply did a "btrfs filesystem balance /path/". "btrfs filesystem show /path/" > > now looks like this: > > > > Label: 'home1' uuid: c3c38f32-f176-4479-8c44-e832ea64639f > > Total devices 2 FS bytes used 226.12GB > > devid 2 size 465.76GB used 114.38GB path /dev/loop3 > > devid 1 size 465.76GB used 114.39GB path /dev/loop4 > > > > > > Before my mistake the "FS bytes used" were all three the same, now the bottom two are > > only half of the size. Am I right that those devices didnt run in raid1 mode anymore? > > :( > > > > > > Is there a way, without copying back all data from my backup, to get those 2 running in > > raid1 mode? > > Or do I have to make a "mkfs.btrfs -m raid1 -d raid1 /dev/1", "btrfs device add /dev/2" and > > "btrfs filesystem balance /path/"? :/ That would cost a lot of time. > > > > > > Thanks for your help! > > > > > > Regards, > > Felix > > -- > > 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 ---end quoted text--- -- 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
