On Tue, Nov 16, 2010 at 10:19:45PM -0500, Chris Ball wrote: > Hi, > > Chris Mason has posted a bunch of interesting updates to the > Project_ideas wiki page. If you're interested in working on any > of these, feel free to speak up and ask for more information if > you need it. Here are the new sections, for the curious: > > == Block group reclaim == > > The split between data and metadata block groups means that we > sometimes have mostly empty block groups dedicated to only data or > metadata. As files are deleted, we should be able to reclaim these > and put the space back into the free space pool. > > We also need rebalancing ioctls that focus only on specific raid > levels.
> == Changing RAID levels == > > We need ioctls to change between different raid levels. Some of these > are quite easy -- e.g. for RAID0 to RAID1, we just halve the available > bytes on the fs, then queue a rebalance. I would be interested in the rebalancing ioctls, and in RAID level management. I'm still very much trying to learn the basics, though, so I may go very slowly at first... Hugo. -- === Hugo Mills: h...@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- We demand rigidly defined areas of doubt and uncertainty! ---
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