On Wed, Jan 22, 2014 at 01:05:33PM +0100, David Sterba wrote: > On Sat, Jan 18, 2014 at 12:50:54PM +0000, Toggenburger Lukas wrote: > > Hello Tomasz > > > > > Have you considered per-file/per-directory selection of raid level? > > > > Sounds great, I haven't thought about it before. > > > > Do you or someone else know what the current state of development is? > > Is someone working on this? > > The feature lacks interface to specify the raid flags per-object. This > is WIP, keyword is 'properties', you'll find some preliminary patches in > the list. This is the ground work for all sorts of fancy tuning. > > The filesystem split into areas with different raid levels will bring > interesting problems regarding free space and operations that cross the > raid levels. But I think it's doable. There's some potentially horrible ENOSPC cases with uneven-sized devices. I need to run some simulations to see how it'll behave... 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 --- The early bird gets the worm, but the second mouse --- gets the cheese.
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