Mailinglist Archive: opensuse-factory (837 mails)

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Re: [opensuse-factory] Can we see BTRFS as the default in the next version of openSUSE 11.5-12.0
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On 03/19/2011 05:06 PM, Stefan Seyfried wrote:
On Sat, 19 Mar 2011 21:46:52 +0100
Kim Leyendecker <kimleyendecker@xxxxxxxxxx> wrote:

Am 19.03.2011 21:41, schrieb Per Jessen:
No, I don't know, but please tell me.
I donĀ“t have count but 5-10 installations.....

I would like to know how you manage to trash your installation so that a
rollback to a previous snapshot is the only solution to recover.

And how you would do the rollback on a non-virtual machine (assuming you
trash it such that it does not boot anymore, how will you do the rollback).

ext3/ext4 have been rock solid for me over the last years. On machines
where I'm doing stuff like running the latest graphics drivers, always the
latest kernels and FACTORY and stuff, and which are those crashing much
more often than average. I never had a catastropic data loss with ext.

And there is a working fsck.

Not arguing against btrfs and snapshots at all, but if the reason is "our
update process is broken in a way that we need to rollback the snapshot
two times a week", then I'd vote for fixing the cause and not the symptoms.

I used it only as an example. If this is a requirement in order to make
the install/update system viable, then of course that's a bad situation
that needs to be resolved. I, fortunately, haven't shared Kim's bad luck
with the update system.

Honestly, the feature that has the most interest for me is the
subvolumes. The upshot is that you create one partition, create a btrfs
on it, and then create subvolumes. They all use the same shared storage
pool. You can add additional disks to expand it and all subvolumes have
access to the new space. This means I'm not staring at the 10 GB I have
free on /home while always doing rpm -e kernel-source during zypper
dup's because my / is too small.

- -Jeff

- --
Jeff Mahoney
SUSE Labs
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