Re: Btrfs and raid5 status with kernel 3.14, documentation, and howto

2014-03-25 Thread Brendan Hide
On 25/03/14 03:29, Marc MERLIN wrote: On Tue, Mar 25, 2014 at 01:11:43AM +, Martin wrote: There's a big thread a short while ago about using parity across n-devices where the parity is spread such that you can have 1, 2, and up to 6 redundant devices. Well beyond just raid5 and raid6: http:

Re: Btrfs and raid5 status with kernel 3.14, documentation, and howto

2014-03-24 Thread Marc MERLIN
On Tue, Mar 25, 2014 at 01:11:43AM +, Martin wrote: > Yes, looking good, but for my usage I need the option to run ok with a > failed drive. So, that's one to keep a development eye on for continued > progress... So it does run with a failed drive, it'll just fill the logs with write errors,

Re: Btrfs and raid5 status with kernel 3.14, documentation, and howto

2014-03-24 Thread Martin
On 24/03/14 21:52, Marc MERLIN wrote: > On Mon, Mar 24, 2014 at 07:17:12PM +, Martin wrote: >> Thanks for the very good summary. >> >> So... In very brief summary, btrfs raid5 is very much a work in progress. > > If you know how to use it, which I didn't know do now, it's technically very > us

Re: Btrfs and raid5 status with kernel 3.14, documentation, and howto

2014-03-24 Thread Marc MERLIN
On Mon, Mar 24, 2014 at 07:17:12PM +, Martin wrote: > Thanks for the very good summary. > > So... In very brief summary, btrfs raid5 is very much a work in progress. If you know how to use it, which I didn't know do now, it's technically very usable as is. The corner cases are in having a fai

Re: Btrfs and raid5 status with kernel 3.14, documentation, and howto

2014-03-24 Thread Martin
On 23/03/14 22:56, Marc MERLIN wrote: > Ok, thanks to the help I got from you, and my own experiments, I've > written this: > http://marc.merlins.org/perso/btrfs/post_2014-03-23_Btrfs-Raid5-Status.html > > If someone reminds me how to edit the btrfs wiki, I'm happy to copy that > there, or give an

Btrfs and raid5 status with kernel 3.14, documentation, and howto

2014-03-23 Thread Marc MERLIN
Ok, thanks to the help I got from you, and my own experiments, I've written this: http://marc.merlins.org/perso/btrfs/post_2014-03-23_Btrfs-Raid5-Status.html If someone reminds me how to edit the btrfs wiki, I'm happy to copy that there, or give anyone permission to take part of all of what I wrot