Re: Likelihood of read error, recover device failure raid10

On Sunday, August 14, 2016 8:04:14 PM CEST you wrote: > On Sunday, August 14, 2016 10:20:39 AM CEST you wrote: > > On Sat, Aug 13, 2016 at 9:39 AM, Wolfgang Mader > > > > wrote: > > > Hi, > > > > > > I have two questions > > > > &g

Re: Likelihood of read error, recover device failure raid10

On Sunday, August 14, 2016 10:20:39 AM CEST you wrote: > On Sat, Aug 13, 2016 at 9:39 AM, Wolfgang Mader > > wrote: > > Hi, > > > > I have two questions > > > > 1) Layout of raid10 in btrfs > > btrfs pools all devices and than stripes and mirrors

Likelihood of read error, recover device failure raid10

Hi, I have two questions 1) Layout of raid10 in btrfs btrfs pools all devices and than stripes and mirrors across this pool. Is it therefore correct, that a raid10 layout consisting of 4 devices a,b,c,d is _not_ raid0 |---| - |a|

Re: Concurrent write access

On Thursday 09 July 2015 22:06:09 Hugo Mills wrote: > On Thu, Jul 09, 2015 at 11:34:40PM +0200, Wolfgang Mader wrote: > > Hi, > > > > I have a btrfs raid10 which is connected to a server hosting > > multiple virtual machine. Does btrfs support connecting the same >

Concurrent write access

Hi, I have a btrfs raid10 which is connected to a server hosting multiple virtual machine. Does btrfs support connecting the same subvolumes of the same raid to multiple virtual machines for concurrent read and write? The situation would be the same as, say, mounting user homes from the same nf

Re: How to get the devid of a missing device

On Monday, April 27, 2015 12:48:07 PM Anand Jain wrote: > On 04/27/2015 02:39 AM, Wolfgang Mader wrote: > > Hello, > > > > I have a raid10 with one device missing. I would like to use btrfs replace > > to replace it. However, I am unsure on how to obtain the devi

Re: How to get the devid of a missing device

On Monday, April 27, 2015 02:11:05 AM Duncan wrote: > Wolfgang Mader posted on Sun, 26 Apr 2015 20:39:34 +0200 as excerpted: > > Hello, > > > > I have a raid10 with one device missing. I would like to use btrfs > > replace to replace it. However, I am unsure on how to

How to get the devid of a missing device

Hello, I have a raid10 with one device missing. I would like to use btrfs replace to replace it. However, I am unsure on how to obtain the devid of the missing device. Having the filesystem mounted in degraded mode under mnt, btrfs fs show /mnt returns sudo btrfs filesystem show /mnt Label: 'd

Scrub status: no stats available

Dear list, I am running btrfs on Arch Linux ARM (Linux 3.14.2, Btrfs v3.14.1). I can run scrub w/o errors, but I never get stats from scrub status What I get is btrfs scrub status /pools/dataPool scrub status for b5f082e2-2ce0-4f91-b54b-c2d26185a635 no stats available

Re: Understanding btrfs and backups

that they do not share a common reference any more, only the send/receive would fail, but I still would have the complete filesystem on the receiving side, and could copy it all over (cp, rscync) to the send side in case of a disaster on the send side. Is this correct? Thank you! Best, Wolfga

Re: Read i/o errs and disk replacement

On Tuesday 18 February 2014 15:02:51 Chris Murphy wrote: > On Feb 18, 2014, at 2:33 PM, Wolfgang Mader wrote: > > Feb 18 13:14:09 deck kernel: ata2.00: failed command: READ DMA > > Feb 18 13:14:09 deck kernel: ata2.00: cmd > > c8/00:08:60:f2:30/00:00:00:00:00

Re: Read i/o errs and disk replacement

On Tuesday 18 February 2014 11:48:49 Chris Murphy wrote: > On Feb 18, 2014, at 6:19 AM, Wolfgang Mader wrote: > > Hi all, > > > > well, I hit the first incidence where I really have to work with my btrfs > > setup. To get things straight I want to double-check here

Read i/o errs and disk replacement

Hi all, well, I hit the first incidence where I really have to work with my btrfs setup. To get things straight I want to double-check here to not screw things up right from the start. We are talking about a home server. There is no time or user pressure involved, and there are backups, too.