From: Chris Mason <chris.mason@fusionio.com>
To: Stefan Behrens <sbehrens@giantdisaster.de>
Cc: "linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>
Subject: Re: [PATCH 00/26] Btrfs: Add device replace code
Date: Wed, 7 Nov 2012 19:59:46 -0500 [thread overview]
Message-ID: <20121108005946.GD16468@shiny> (raw)
In-Reply-To: <cover.1352214751.git.sbehrens@giantdisaster.de>
On Tue, Nov 06, 2012 at 09:38:18AM -0700, Stefan Behrens wrote:
> This patch series adds support for replacing disks at runtime.
>
> It replaces the following steps in case a disk was lost:
> mount ... -o degraded
> btrfs device add new_disk
> btrfs device delete missing
>
> Or in case a disk just needs to be replaced because the error rate
> is increasing:
> btrfs device add new_disk
> btrfs device delete old_disk
>
> Instead just run:
> btrfs replace mountpoint old_disk new_disk
>
This is just fantastic. I'm pulling it down and doing a test
integration with RAID56. More comments as I hash through things.
-chris
prev parent reply other threads:[~2012-11-08 0:59 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-06 16:38 [PATCH 00/26] Btrfs: Add device replace code Stefan Behrens
2012-11-06 16:38 ` [PATCH 01/26] Btrfs: rename the scrub context structure Stefan Behrens
2012-11-06 16:38 ` [PATCH 02/26] Btrfs: remove the block device pointer from the scrub context struct Stefan Behrens
2012-11-06 16:38 ` [PATCH 03/26] Btrfs: make the scrub page array dynamically allocated Stefan Behrens
2012-11-06 16:38 ` [PATCH 04/26] Btrfs: in scrub repair code, optimize the reading of mirrors Stefan Behrens
2012-11-06 16:38 ` [PATCH 05/26] Btrfs: in scrub repair code, simplify alloc error handling Stefan Behrens
2012-11-06 16:38 ` [PATCH 06/26] Btrfs: cleanup scrub bio and worker wait code Stefan Behrens
2012-11-06 16:38 ` [PATCH 07/26] Btrfs: add two more find_device() methods Stefan Behrens
2012-11-08 14:24 ` Liu Bo
2012-11-12 16:50 ` Stefan Behrens
2012-11-06 16:38 ` [PATCH 08/26] Btrfs: Pass fs_info to btrfs_num_copies() instead of mapping_tree Stefan Behrens
2012-11-06 16:38 ` [PATCH 09/26] Btrfs: pass fs_info to btrfs_map_block() " Stefan Behrens
2012-11-06 16:38 ` [PATCH 10/26] Btrfs: add btrfs_scratch_superblock() function Stefan Behrens
2012-11-06 16:38 ` [PATCH 11/26] Btrfs: pass fs_info instead of root Stefan Behrens
2012-11-06 16:38 ` [PATCH 12/26] Btrfs: avoid risk of a deadlock in btrfs_handle_error Stefan Behrens
2012-11-06 16:38 ` [PATCH 13/26] Btrfs: enhance btrfs structures for device replace support Stefan Behrens
2012-11-06 16:38 ` [PATCH 14/26] Btrfs: introduce a btrfs_dev_replace_item type Stefan Behrens
2012-11-06 16:38 ` [PATCH 15/26] Btrfs: add a new source file with device replace code Stefan Behrens
2012-11-08 14:50 ` Liu Bo
2012-11-08 17:24 ` Stefan Behrens
2012-11-09 0:44 ` Liu Bo
2012-11-09 10:19 ` Stefan Behrens
2012-11-09 14:45 ` Liu Bo
2012-11-12 17:21 ` Stefan Behrens
2012-11-06 16:38 ` [PATCH 16/26] Btrfs: disallow mutually exclusiv admin operations from user mode Stefan Behrens
2012-11-06 16:38 ` [PATCH 17/26] Btrfs: disallow some operations on the device replace target device Stefan Behrens
2012-11-06 16:38 ` [PATCH 18/26] Btrfs: handle errors from btrfs_map_bio() everywhere Stefan Behrens
2012-11-06 16:38 ` [PATCH 19/26] Btrfs: add code to scrub to copy read data to another disk Stefan Behrens
2012-11-07 0:30 ` Tsutomu Itoh
2012-11-07 10:30 ` Stefan Behrens
2012-11-06 16:38 ` [PATCH 20/26] Btrfs: change core code of btrfs to support the device replace operations Stefan Behrens
2012-11-06 16:38 ` [PATCH 21/26] Btrfs: introduce GET_READ_MIRRORS functionality for btrfs_map_block() Stefan Behrens
2012-11-06 16:38 ` [PATCH 22/26] Btrfs: changes to live filesystem are also written to replacement disk Stefan Behrens
2012-11-06 16:38 ` [PATCH 23/26] Btrfs: optionally avoid reads from device replace source drive Stefan Behrens
2012-11-06 16:38 ` [PATCH 24/26] Btrfs: increase BTRFS_MAX_MIRRORS by one for dev replace Stefan Behrens
2012-11-09 10:47 ` David Pottage
2012-11-09 11:23 ` Stefan Behrens
2012-11-06 16:38 ` [PATCH 25/26] Btrfs: allow repair code to include target disk when searching mirrors Stefan Behrens
2012-11-06 16:38 ` [PATCH 26/26] Btrfs: add support for device replace ioctls Stefan Behrens
[not found] ` <CAGy7UtjR+kZoBYWaeg=-jHbJHQh4pe3Jt5cwX-rTQEBHFkQ-YQ@mail.gmail.com>
2012-11-06 18:57 ` [PATCH 00/26] Btrfs: Add device replace code Stefan Behrens
2012-11-06 19:20 ` Hugo Mills
2012-11-06 22:48 ` Zach Brown
2012-11-07 10:29 ` Stefan Behrens
2012-11-07 2:14 ` Tsutomu Itoh
2012-11-07 13:12 ` Stefan Behrens
2012-11-08 12:50 ` Goffredo Baroncelli
2012-11-08 17:31 ` Stefan Behrens
2012-11-08 18:41 ` Goffredo Baroncelli
2012-11-09 10:02 ` Michael Kjörling
2012-11-13 16:25 ` Bart Noordervliet
2012-11-14 11:42 ` Stefan Behrens
2012-11-08 0:59 ` Chris Mason [this message]
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=20121108005946.GD16468@shiny \
--to=chris.mason@fusionio.com \
--cc=linux-btrfs@vger.kernel.org \
--cc=sbehrens@giantdisaster.de \
/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).