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From: Goffredo Baroncelli <kreijack@libero.it>
To: Chris Murphy <lists@colorremedies.com>
Cc: Btrfs BTRFS <linux-btrfs@vger.kernel.org>
Subject: Re: BUG: btrfsRe: Does btrfs "raid1" actually provide any resilience?
Date: Thu, 14 Nov 2013 22:31:11 +0100	[thread overview]
Message-ID: <5285411F.5020805@libero.it> (raw)
In-Reply-To: <A0F65AC7-D109-47AB-AA1B-9156A33E86A5@colorremedies.com>

On 2013-11-14 22:22, Chris Murphy wrote:
> 
> On Nov 14, 2013, at 1:47 PM, Goffredo Baroncelli <kreijack@libero.it> wrote:
>>
>> Instead if I use the btrfs-progs c652e4efb8e2dd7... I got
>>
>> [snip]
> 
>> Data+Metadata: total=8.00MB, used=28.00KB
>>
>> Note the absence of any RAID1 profile.
> 
> What happens if the devices are large enough to avoid mandatory block group mixing? Try 100GB for each device. Is the problem reproducible?

It seems related to the mixing (see my other email). Even looking at the
code and doing some tests seems to confirm that.

> 
> Chris Murphy--

Goffredo


-- 
gpg @keyserver.linux.it: Goffredo Baroncelli (kreijackATinwind.it>
Key fingerprint BBF5 1610 0B64 DAC6 5F7D  17B2 0EDA 9B37 8B82 E0B5

      reply	other threads:[~2013-11-14 21:31 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-14 11:02 Does btrfs "raid1" actually provide any resilience? Lutz Vieweg
2013-11-14 17:18 ` George Mitchell
2013-11-14 17:35   ` Lutz Vieweg
2013-11-14 19:59     ` Kyle Gates
2013-11-15  1:58     ` George Mitchell
2013-11-14 18:22 ` Goffredo Baroncelli
2013-11-14 20:47   ` BUG: btrfsRe: " Goffredo Baroncelli
2013-11-14 21:21     ` Mixed and raid [was Re: BUG: btrfsRe: Does btrfs "raid1" actually provide any resilience?] Goffredo Baroncelli
2013-11-15  4:44       ` Anand Jain
2013-11-15 10:35         ` Lutz Vieweg
2013-11-15 10:36         ` Lutz Vieweg
2013-11-15  7:12       ` Duncan
2013-11-15  7:30         ` Goffredo Baroncelli
2013-11-15  9:37           ` Duncan
2013-11-14 21:22     ` BUG: btrfsRe: Does btrfs "raid1" actually provide any resilience? Chris Murphy
2013-11-14 21:31       ` Goffredo Baroncelli [this message]

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