linux-btrfs.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Qu Wenruo <quwenruo.btrfs@gmx.com>
To: Wang Yugui <wangyugui@e16-tech.com>
Cc: Adam Borowski <kilobyte@angband.pl>,
	Goffredo Baroncelli <kreijack@libero.it>,
	linux-btrfs@vger.kernel.org, Michael <mclaud@roznica.com.ua>,
	Hugo Mills <hugo@carfax.org.uk>,
	Martin Svec <martin.svec@zoner.cz>,
	Goffredo Baroncelli <kreijack@inwind.it>
Subject: Re: [PATCH] btrfs: add ssd_metadata mode
Date: Fri, 23 Oct 2020 20:45:43 +0800	[thread overview]
Message-ID: <acb58507-ca7a-ddbd-88c1-cd35a127bb64@gmx.com> (raw)
In-Reply-To: <20201023203742.B13F.409509F4@e16-tech.com>



On 2020/10/23 下午8:37, Wang Yugui wrote:
> Hi,
>
> Can we add the feature of 'Storage Tiering' to btrfs for these use cases?

Feel free to contribute.

Although it seems pretty hard already, too many factors are involved,
from extent allocator to chunk allocator.

Just consider how complex things are for bcache, it won't be a simple
feature at all.

Thanks,
Qu
>
> 1) use faster tier firstly for metadata
>
> 2) only the subvol with higher tier can save data to
>     the higher tier disk?
>
> 3) use faster tier firstly for mirror selection of RAID1/RAID10
>
> Best Regards
> Wang Yugui (wangyugui@e16-tech.com)
> 2020/10/23
>
>

  reply	other threads:[~2020-10-23 12:46 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-05  8:26 [RFC][PATCH V3] btrfs: ssd_metadata: storing metadata on SSD Goffredo Baroncelli
2020-04-05  8:26 ` [PATCH] btrfs: add ssd_metadata mode Goffredo Baroncelli
2020-04-14  5:24   ` Paul Jones
2020-10-23  7:23   ` Wang Yugui
2020-10-23 10:11     ` Adam Borowski
2020-10-23 11:25       ` Qu Wenruo
2020-10-23 12:37         ` Wang Yugui
2020-10-23 12:45           ` Qu Wenruo [this message]
2020-10-23 13:10           ` Steven Davies
2020-10-23 13:49             ` Wang Yugui
2020-10-23 18:03           ` Goffredo Baroncelli
2020-10-24  3:26             ` Paul Jones
2020-04-05 10:57 ` [RFC][PATCH V3] btrfs: ssd_metadata: storing metadata on SSD Graham Cobb
2020-04-05 18:47   ` Goffredo Baroncelli
2020-04-05 21:58     ` Adam Borowski
2020-04-06  2:24   ` Zygo Blaxell
2020-04-06 16:43     ` Goffredo Baroncelli
2020-04-06 17:21       ` Zygo Blaxell
2020-04-06 17:33         ` Goffredo Baroncelli
2020-04-06 17:40           ` Zygo Blaxell
2020-05-29 16:06 ` Hans van Kranenburg
2020-05-29 16:40   ` Goffredo Baroncelli
2020-05-29 18:37     ` Hans van Kranenburg
2020-05-30  4:59 ` Qu Wenruo
2020-05-30  6:48   ` Goffredo Baroncelli
2020-05-30  8:57     ` Paul Jones
  -- strict thread matches above, loose matches on Subject: below --
2020-04-05  7:19 [RFC][PATCH v2] " Goffredo Baroncelli
2020-04-05  7:19 ` [PATCH] btrfs: add ssd_metadata mode Goffredo Baroncelli
2020-04-01 20:03 [RFC] btrfs: ssd_metadata: storing metadata on SSD Goffredo Baroncelli
2020-04-01 20:03 ` [PATCH] btrfs: add ssd_metadata mode Goffredo Baroncelli
2020-04-01 20:53   ` Goffredo Baroncelli
2020-04-02  9:33   ` Steven Davies
2020-04-02 16:39     ` Goffredo Baroncelli
2020-04-03  8:43     ` Michael
2020-04-03 10:08       ` Steven Davies
2020-04-03 16:19       ` Goffredo Baroncelli
2020-04-03 16:28         ` Hugo Mills
2020-04-03 16:36           ` Hans van Kranenburg
2020-04-02 18:01   ` Martin Svec

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=acb58507-ca7a-ddbd-88c1-cd35a127bb64@gmx.com \
    --to=quwenruo.btrfs@gmx.com \
    --cc=hugo@carfax.org.uk \
    --cc=kilobyte@angband.pl \
    --cc=kreijack@inwind.it \
    --cc=kreijack@libero.it \
    --cc=linux-btrfs@vger.kernel.org \
    --cc=martin.svec@zoner.cz \
    --cc=mclaud@roznica.com.ua \
    --cc=wangyugui@e16-tech.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).