From: Johannes Hirte <johannes.hirte@datenkhaos.de>
To: Zygo Blaxell <ce3g8jdj@umail.furryterror.org>
Cc: Justin Engwer <justin@mautobu.com>, linux-btrfs@vger.kernel.org
Subject: Re: I think he's dead, Jim
Date: Wed, 20 May 2020 22:53:19 +0200 [thread overview]
Message-ID: <20200520205319.GA26435@latitude> (raw)
In-Reply-To: <20200520013255.GD10769@hungrycats.org>
On 2020 Mai 19, Zygo Blaxell wrote:
>
> Corollary: Never use space_cache=v1 with raid5 or raid6 data.
> space_cache=v1 puts some metadata (free space cache) in data block
> groups, so it violates the "never use raid5 or raid6 for metadata" rule.
> space_cache=v2 eliminates this problem by storing the free space tree
> in metadata block groups.
>
This should not be a real problem, as the space-cache can be discarded
and rebuild anytime. Or do I miss something?
--
Regards,
Johannes Hirte
next prev parent reply other threads:[~2020-05-20 21:02 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-18 20:51 I think he's dead, Jim Justin Engwer
2020-05-18 23:23 ` Chris Murphy
[not found] ` <CAGAeKuv3y=rHvRsq6SVSQ+NadyUaFES94PpFu1zD74cO3B_eLA@mail.gmail.com>
[not found] ` <CAJCQCtQXR+x4mG+jT34nhkE69sP94yio-97MLmd_ugKS+m96DQ@mail.gmail.com>
2020-05-19 18:45 ` Justin Engwer
2020-05-19 20:44 ` Chris Murphy
2020-05-20 1:32 ` Zygo Blaxell
2020-05-20 20:53 ` Johannes Hirte [this message]
2020-05-20 21:35 ` Chris Murphy
2020-05-20 22:15 ` Johannes Hirte
2020-05-21 6:20 ` Zygo Blaxell
2020-05-21 17:24 ` Justin Engwer
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