On Sat, Jun 01, 2013 at 02:07:53PM -0700, ronnie sahlberg wrote: > Hi List, > > I have a filesystem that is spanning about 10 devices. > It is currently using RAID1 for both data and metadata. > > In order to get higher availability and be able to handle multi device > failures > I would like to change from RAID1 to RAID6. > > > Is it possible/stable/supported/recommended to change data from RAID1 to > RAID6 ? > (I assume "btrfs fi balance ..." is used for this?)
Yes. > Metadata is currently RAID1, is it supported to put metadata as RAID6 too? > It would be "odd" to have lesser protection for metadata than data. > Optimally I would like a mode where metadata is mirrored onto all the > spindles in the filesystem, not just 2 in RAID1 or n in RAID6. Yes, that should be supported. > Im running a 3.8.0 kernel. The btrfs RAID-5 and RAID-6 implementations aren't really ready for production use, so right now I wouldn't recommend using them for anything other than for testing purposes with data that's replacable. Hugo. -- === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 65E74AC0 from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- w.w.w. : England's batting scorecard ---
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