On Thu, 20 Aug 2015 10:09:26 PM Austin S Hemmelgarn wrote:
> > 2: Out of curiosity, why is data checksumming tied to COW?
>
> There's no safe way to sanely handle checksumming without COW, because
> there is no way (at least on current hardware) to ensure that the data
> block and the checksums b
On 2015-08-20 12:44, Chris Murphy wrote:
On Wed, Aug 19, 2015 at 9:43 PM, Russell Coker wrote:
On Thu, 20 Aug 2015 11:55:43 AM Chris Murphy wrote:
Question 1: If I apply the NOCOW attribute to a file or directory, how
does that affect my ability to run btrfs scrub?
nodatacow includes nodata
On Wed, Aug 19, 2015 at 9:43 PM, Russell Coker wrote:
> On Thu, 20 Aug 2015 11:55:43 AM Chris Murphy wrote:
>> > Question 1: If I apply the NOCOW attribute to a file or directory, how
>> > does that affect my ability to run btrfs scrub?
>>
>> nodatacow includes nodatasum and no compression. So it
On 2015-08-20 00:40, Jonathan Panozzo wrote:
Zhao,
Thank you for your response. Two quick follow-up questions:
1: What happens on an unrecoverable data error case? Does the volume get put
into read-only mode?
Yes.
2: Out of curiosity, why is data checksumming tied to COW?
There's no saf
Hi, Jonathan Panozzo
> -Original Message-
> From: Jonathan Panozzo [mailto:j...@lime-technology.com]
> Sent: Thursday, August 20, 2015 2:13 PM
> To: Zhao Lei
> Cc: Chris Murphy ; Btrfs BTRFS
>
> Subject: Re: Questions on use of NOCOW impact to subvolumes and snaps
t;>>
>>>> -Original Message-
>>>> From: linux-btrfs-ow...@vger.kernel.org
>>>> [mailto:linux-btrfs-ow...@vger.kernel.org] On Behalf Of Chris Murphy
>>>> Sent: Thursday, August 20, 2015 9:56 AM
>>>> To: Jonathan Panozzo ; Btrf
Hi, Jonathan Panozzo
> -Original Message-
> From: Jonathan Panozzo [mailto:j...@lime-technology.com]
> Sent: Thursday, August 20, 2015 12:41 PM
> To: Zhao Lei
> Cc: Chris Murphy ; Btrfs BTRFS
>
> Subject: Re: Questions on use of NOCOW impact to subvolumes an
> Hi, Jonathan Panozzo,
>
>> -Original Message-
>> From: linux-btrfs-ow...@vger.kernel.org
>> [mailto:linux-btrfs-ow...@vger.kernel.org] On Behalf Of Chris Murphy
>> Sent: Thursday, August 20, 2015 9:56 AM
>> To: Jonathan Panozzo ; Btrfs BTRFS
>>
Hi, Jonathan Panozzo,
> -Original Message-
> From: linux-btrfs-ow...@vger.kernel.org
> [mailto:linux-btrfs-ow...@vger.kernel.org] On Behalf Of Chris Murphy
> Sent: Thursday, August 20, 2015 9:56 AM
> To: Jonathan Panozzo ; Btrfs BTRFS
>
> Subject: Re: Questions on u
On Thu, 20 Aug 2015 11:55:43 AM Chris Murphy wrote:
> > Question 1: If I apply the NOCOW attribute to a file or directory, how
> > does that affect my ability to run btrfs scrub?
>
> nodatacow includes nodatasum and no compression. So it means these
> files are presently immune from scrub check a
On Wed, Aug 19, 2015 at 6:44 PM, Jonathan Panozzo
wrote:
> Hello btrfs mailing list!
>
> I have a two questions regarding the use of the NOCOW bit and how this
> affects scrub and snapshots.
>
> Question 1: If I apply the NOCOW attribute to a file or directory, how does
> that affect my ability
Hello btrfs mailing list!
I have a two questions regarding the use of the NOCOW bit and how this affects
scrub and snapshots.
Question 1: If I apply the NOCOW attribute to a file or directory, how does
that affect my ability to run btrfs scrub?
Question 2: If I apply the NOCOW attribute recu
12 matches
Mail list logo
