On Mon, May 06, 2013 at 10:36:03PM +0200, Kai Krakow wrote: > zwu.ker...@gmail.com <zwu.ker...@gmail.com> schrieb: > > > The patchset is trying to introduce hot relocation support > > for BTRFS. In hybrid storage environment, when the data in > > HDD disk get hot, it can be relocated to SSD disk by BTRFS > > hot relocation support automatically; also, if SSD disk ratio > > exceed its upper threshold, the data which get cold can be > > looked up and relocated to HDD disk to make more space in SSD > > disk at first, and then the data which get hot will be relocated > > to SSD disk automatically. > > How will it compare to bcache? I'm currently thinking about buying an SSD > but bcache requires some efforts in migrating the storage to use. And after > all those hassles I am even not sure if it would work easily with a dracut > generated initramfs.
On the side note: dm-cache, which is already in-kernel, do not need to reformat backing storage. -- Tomasz Torcz Only gods can safely risk perfection, xmpp: zdzich...@chrome.pl it's a dangerous thing for a man. -- Alia -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
