On 07/01/11 16:20, Hubert Kario wrote:
I usually create subvolumes in btrfs root volume:
/mnt/btrfs/
|- server-a
|- server-b
\- server-c
then create snapshots of these directories:
/mnt/btrfs/
|- server-a
|- server-b
|- server-c
I'd rather not do the copy again unless necessary, as it took a day.
Directories look identical, but who knows? I'm going to try and figure out how
to do a file-by-file crc check, for peace of mind.
On Sat 08 January 2011 17:26:25 Freddie Cash wrote:
On Sat, Jan 8, 2011 at 5:25 AM, Carl
On Sun, Jan 9, 2011 at 6:46 PM, Alan Chandler
a...@chandlerfamily.org.uk wrote:
then create snapshots of these directories:
/mnt/btrfs/
|- server-a
|- server-b
|- server-c
|- snapshots-server-a
|- @GMT-2010.12.21-16.48.09
On 09/01/11 13:37, Fajar A. Nugraha wrote:
On Sun, Jan 9, 2011 at 8:16 PM, Carl Cookcac...@quantum-sci.com wrote:
I'd rather not do the copy again unless necessary, as it took a day.
Directories look identical, but who knows? I'm going to try and figure out how
to do a file-by-file
On Sat, Jan 8, 2011 at 10:43 PM, Thomas Bellman bell...@nsc.liu.se wrote:
So, basically database transactions with an isolation level of
committed read, for file operations. That's something I have
wanted for a long time, especially if I also get a rollback()
operation, but have never heard
On 09/01/11 13:54, Fajar A. Nugraha wrote:
By default, when you do something like
mount /dev/sdb1 /mnt/btrfs
the default subvolume will be mounted under /mnt/btrfs. Snapshots and
subvolumes will be visible as subdirectories under it, regardless
whether it's in the root or several
Hi,
I have just recently installed Debian squeeze with a root filesystem
on btrfs [1]. I have noticed however that I cannot set up a swap file
stored on the btrfs volume:
dd if=/dev/zero of=/var/swap bs=16M count=4
mkswap /var/swap
chmod 0 /var/swap
swapon /var/swap
[ 01751.879759] swapon:
On Sun, Jan 9, 2011 at 7:32 AM, Alan Chandler
a...@chandlerfamily.org.uk wrote:
I think I start to get it now. Its the fact that subvolumes can be
snapshotted etc without mounting them that is the difference. I guess I am
too used to thinking like LVM and I was thinking subvolumes where like
Olaf van der Spek wrote:
On Sat, Jan 8, 2011 at 10:43 PM, Thomas Bellman bell...@nsc.liu.se wrote:
So, basically database transactions with an isolation level of
committed read, for file operations. That's something I have
wanted for a long time, especially if I also get a rollback()
On Sun, Jan 9, 2011 at 7:56 PM, Thomas Bellman bell...@nsc.liu.se wrote:
True, that's why this feature request is here.
Note that it's (ATM) only about single file data replace.
That particular problem was solved with the introduction of the
rename(2) system call in 4.2BSD a bit more than a
On 01/09/2011 01:56 PM, Thomas Bellman wrote:
That particular problem was solved with the introduction of the
rename(2) system call in 4.2BSD a bit more than a quarter of a
century ago. There is no need to introduce another, less flexible,
API for doing the same thing.
I'm curious if there are
On 09/01/11 18:30, Hugo Mills wrote:
No, subvolumes are a part of the whole filesystem. In btrfs, there
is only one filesystem. There are 6 main B-trees that store metadata
in btrfs (plus a couple of others). One of those is the filesystem
tree (or FS tree), which contains all the
On Sun, Jan 09, 2011 at 08:57:12PM +, Alan Chandler wrote:
On 09/01/11 18:30, Hugo Mills wrote:
No, subvolumes are a part of the whole filesystem. In btrfs, there
is only one filesystem. There are 6 main B-trees that store metadata
in btrfs (plus a couple of others). One of those is
On 09/01/11 22:01, Hugo Mills wrote:
I find the wiki
also confusing because it talks about subvolumes having to be at the
first level of the filesystem, but again further up this thread
there is an example which is used for real of it not being at the
first level, but at one level down inside
On Mon, Jan 10, 2011 at 5:01 AM, Hugo Mills hugo-l...@carfax.org.uk wrote:
There is a root subvolume namespace (subvolid=0), which may contain
files, directories, and other subvolumes. This root subvolume is what
you see when you mount a newly-created btrfs filesystem.
Is there a detailed
Hi Miao,
As you suggested, in btrfs_recover_log_trees(), the items to modify in the
transaction are
not known before entering a tree, we can use the global block reservation for
it.
Signed-off-by: Itaru Kitayama kitay...@cl.bb4u.ne.jp
---
fs/btrfs/tree-log.c |2 ++
1 files changed, 2
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