From: Hugo Mills <hugo@carfax.org.uk>
To: Stefan K <shadow_7@gmx.net>
Cc: Linux Btrfs <linux-btrfs@vger.kernel.org>
Subject: Re: question about creating a raid10
Date: Wed, 16 Jan 2019 14:42:08 +0000 [thread overview]
Message-ID: <20190116144208.GI5134@carfax.org.uk> (raw)
In-Reply-To: <3318002.5e9V1lv8s4@t460-skr>
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On Wed, Jan 16, 2019 at 03:36:25PM +0100, Stefan K wrote:
> Hello,
>
> if I create a raid10 it looks like that:
> mkfs.btrfs -m raid10 -d raid10 /dev/sdb /dev/sdc /dev/sdd /dev/sde
>
> but if I've different jbods and I want that every mirror of a raid10 is on a different jbod how can I archive that? in zfs it looks like that:
[snip]
> how can I be sure that is btrfs the same?
I'm afraid you can't. It would take modifications of the chunk
allocator to achieve this (and you'd also need to store the metadata
somewhere as to which devices were in which failure domain).
Hugo.
--
Hugo Mills | "It was half way to Rivendell when the drugs began
hugo@... carfax.org.uk | to take hold"
http://carfax.org.uk/ | Hunter S Tolkien
PGP: E2AB1DE4 | Fear and Loathing in Barad Dûr
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next prev parent reply other threads:[~2019-01-16 14:42 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-16 14:36 question about creating a raid10 Stefan K
2019-01-16 14:42 ` Hugo Mills [this message]
2019-01-16 14:58 ` Stefan K
2019-01-16 18:15 ` Chris Murphy
2019-01-17 0:59 ` Paul Jones
2019-01-17 12:33 ` Austin S. Hemmelgarn
2019-01-17 19:17 ` Andrei Borzenkov
2019-01-18 7:02 ` Stefan K
2019-01-18 13:30 ` Jukka Larja
2019-01-19 2:43 ` Chris Murphy
-- strict thread matches above, loose matches on Subject: below --
2019-01-17 23:28 Tomasz Chmielewski
2019-01-19 2:12 ` Chris Murphy
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