Re: raid1: cannot add disk to replace faulty because can only mount fs as read-only.

2017-02-08 Thread Austin S. Hemmelgarn
On 2017-02-08 08:46, Tomasz Torcz wrote: On Wed, Feb 08, 2017 at 07:50:22AM -0500, Austin S. Hemmelgarn wrote: It is exponentially safer in BTRFS to run single data single metadata than half raid1 data half raid1 metadata. Why? To convert to profiles _designed_ for a single device and the

Re: raid1: cannot add disk to replace faulty because can only mount fs as read-only.

2017-02-08 Thread Tomasz Torcz
On Wed, Feb 08, 2017 at 07:50:22AM -0500, Austin S. Hemmelgarn wrote: > It is exponentially safer in BTRFS > to run single data single metadata than half raid1 data half raid1 metadata. Why? > To convert to profiles _designed_ for a single device and then convert back > to raid1 when I got an

Re: raid1: cannot add disk to replace faulty because can only mount fs as read-only.

2017-02-08 Thread Austin S. Hemmelgarn
On 2017-02-07 22:21, Hans Deragon wrote: Greetings, On 2017-02-02 10:06, Austin S. Hemmelgarn wrote: On 2017-02-02 09:25, Adam Borowski wrote: On Thu, Feb 02, 2017 at 07:49:50AM -0500, Austin S. Hemmelgarn wrote: This is a severe bug that makes a not all that uncommon (albeit bad) use case fa

Re: raid1: cannot add disk to replace faulty because can only mount fs as read-only.

2017-02-07 Thread Hans Deragon
Greetings, On 2017-02-02 10:06, Austin S. Hemmelgarn wrote: > On 2017-02-02 09:25, Adam Borowski wrote: >> On Thu, Feb 02, 2017 at 07:49:50AM -0500, Austin S. Hemmelgarn wrote: >>> This is a severe bug that makes a not all that uncommon (albeit bad) use >>> case fail completely. The fix had no de

Re: raid1: cannot add disk to replace faulty because can only mount fs as read-only.

2017-02-03 Thread Duncan
Austin S. Hemmelgarn posted on Thu, 02 Feb 2017 07:49:50 -0500 as excerpted: > I think (although I'm not sure about it) that this: > http://www.spinics.net/lists/linux-btrfs/msg47283.html is the first > posting of the patch series. Yes. That looks like it. Thanks. -- Duncan - List replies pre

Re: raid1: cannot add disk to replace faulty because can only mount fs as read-only.

2017-02-02 Thread Austin S. Hemmelgarn
On 2017-02-02 09:25, Adam Borowski wrote: On Thu, Feb 02, 2017 at 07:49:50AM -0500, Austin S. Hemmelgarn wrote: This is a severe bug that makes a not all that uncommon (albeit bad) use case fail completely. The fix had no dependencies itself and I don't see what's bad in mounting a RAID degra

Re: raid1: cannot add disk to replace faulty because can only mount fs as read-only.

2017-02-02 Thread Adam Borowski
On Thu, Feb 02, 2017 at 07:49:50AM -0500, Austin S. Hemmelgarn wrote: > This is a severe bug that makes a not all that uncommon (albeit bad) use > case fail completely. The fix had no dependencies itself and I don't see what's bad in mounting a RAID degraded. Yeah, it provides no redundancy but

Re: raid1: cannot add disk to replace faulty because can only mount fs as read-only.

2017-02-02 Thread Austin S. Hemmelgarn
On 2017-02-01 17:48, Duncan wrote: Adam Borowski posted on Wed, 01 Feb 2017 12:55:30 +0100 as excerpted: On Wed, Feb 01, 2017 at 05:23:16AM +, Duncan wrote: Hans Deragon posted on Tue, 31 Jan 2017 21:51:22 -0500 as excerpted: But the current scenario makes it difficult for me to put redun

Re: raid1: cannot add disk to replace faulty because can only mount fs as read-only.

2017-02-01 Thread Duncan
Adam Borowski posted on Wed, 01 Feb 2017 12:55:30 +0100 as excerpted: > On Wed, Feb 01, 2017 at 05:23:16AM +, Duncan wrote: >> Hans Deragon posted on Tue, 31 Jan 2017 21:51:22 -0500 as excerpted: >> > But the current scenario makes it difficult for me to put redundancy >> > back into service!

Re: raid1: cannot add disk to replace faulty because can only mount fs as read-only.

2017-02-01 Thread Adam Borowski
On Wed, Feb 01, 2017 at 05:23:16AM +, Duncan wrote: > Hans Deragon posted on Tue, 31 Jan 2017 21:51:22 -0500 as excerpted: > > But the current scenario makes it difficult for me to put redundancy > > back into service! How much time did I waited until I find the mailing > > list, subscribe to

Re: raid1: cannot add disk to replace faulty because can only mount fs as read-only.

2017-01-31 Thread Duncan
Hans Deragon posted on Tue, 31 Jan 2017 21:51:22 -0500 as excerpted: > But the current scenario makes it difficult for me to put redundancy > back into service! How much time did I waited until I find the mailing > list, subscribe to it, post my email and get an answer? Wouldn't it be > better i

Re: raid1: cannot add disk to replace faulty because can only mount fs as read-only.

2017-01-31 Thread Hans Deragon
On 2017-01-30 07:18, Austin S. Hemmelgarn wrote: > On 2017-01-28 04:17, Andrei Borzenkov wrote: >> 27.01.2017 23:03, Austin S. Hemmelgarn пишет: >>> On 2017-01-27 11:47, Hans Deragon wrote: On 2017-01-24 14:48, Adam Borowski wrote: > On Tue, Jan 24, 2017 at 01:57:24PM -0500, Hans Dera

Re: raid1: cannot add disk to replace faulty because can only mount fs as read-only.

2017-01-30 Thread Austin S. Hemmelgarn
On 2017-01-28 04:17, Andrei Borzenkov wrote: 27.01.2017 23:03, Austin S. Hemmelgarn пишет: On 2017-01-27 11:47, Hans Deragon wrote: On 2017-01-24 14:48, Adam Borowski wrote: On Tue, Jan 24, 2017 at 01:57:24PM -0500, Hans Deragon wrote: If I remove 'ro' from the option, I cannot get the file

Re: raid1: cannot add disk to replace faulty because can only mount fs as read-only.

2017-01-28 Thread Andrei Borzenkov
27.01.2017 23:03, Austin S. Hemmelgarn пишет: > On 2017-01-27 11:47, Hans Deragon wrote: >> On 2017-01-24 14:48, Adam Borowski wrote: >> >>> On Tue, Jan 24, 2017 at 01:57:24PM -0500, Hans Deragon wrote: >>> If I remove 'ro' from the option, I cannot get the filesystem mounted because of t

Re: raid1: cannot add disk to replace faulty because can only mount fs as read-only.

2017-01-27 Thread Adam Borowski
On Fri, Jan 27, 2017 at 03:03:18PM -0500, Austin S. Hemmelgarn wrote: > On 2017-01-27 11:47, Hans Deragon wrote: > > However, as a user, I am seeking for an easy, no maintenance raid > > solution. I wish that if a drive fails, the btrfs filesystem still > > mounts rw and leaves the OS running, but

Re: raid1: cannot add disk to replace faulty because can only mount fs as read-only.

2017-01-27 Thread Austin S. Hemmelgarn
On 2017-01-27 11:47, Hans Deragon wrote: On 2017-01-24 14:48, Adam Borowski wrote: On Tue, Jan 24, 2017 at 01:57:24PM -0500, Hans Deragon wrote: If I remove 'ro' from the option, I cannot get the filesystem mounted because of the following error: BTRFS: missing devices(1) exceeds the limit(0)

Re: raid1: cannot add disk to replace faulty because can only mount fs as read-only.

2017-01-27 Thread Hans Deragon
On 2017-01-24 14:48, Adam Borowski wrote: On Tue, Jan 24, 2017 at 01:57:24PM -0500, Hans Deragon wrote: If I remove 'ro' from the option, I cannot get the filesystem mounted because of the following error: BTRFS: missing devices(1) exceeds the limit(0), writeable mount is not allowed So I am

Re: raid1: cannot add disk to replace faulty because can only mount fs as read-only.

2017-01-24 Thread Adam Borowski
On Tue, Jan 24, 2017 at 01:57:24PM -0500, Hans Deragon wrote: > If I remove 'ro' from the option, I cannot get the filesystem mounted > because of the following error: > > BTRFS: missing devices(1) exceeds the limit(0), writeable mount is not > allowed > > So I am stuck. I can only mount the file

raid1: cannot add disk to replace faulty because can only mount fs as read-only.

2017-01-24 Thread Hans Deragon
Greetings, Warning: Btrfs user here; no knowledge of the inside working of btrfs. If I am in the wrong mailing list, please redirect me and accept my apologies. At home, lacking of disks and free SATA ports, I created a raid1 btrfs filesystem by converting an existing single btrfs instance