On Wed, Jan 19, 2011 at 03:15:40PM -0200, Roberto Spadim wrote: > hummm.... > thinking again..... > > what?s the today raid1 problem? > it?s based on minimal disk size > for example... > /dev/sda 1gb > /dev/sdb 1tb > we can have a 1gb raid only > > what you want is: > 1tb raid0 > with a automatic /dev/sda to /dev/sdb write > > > could we call this raid0-cache? > i think we could implement it in raid.... > > check this fuse (filesystem) implementation: http://www.furquim.org/chironfs/ > it?s based on filesystem (ok it?s a raid1, not a cache like, but?s > limited to max filesystem size, not the minimal filesystem size... ok > it?s not secure to use it since small filesystem don?t have all > information, but?s nice) > > anyone want to make raid0-cache implementation? I have two comments on this. I don't think the cache device should be the same size as your disk storage. It should be a small cache size similar to hardware RAID. Also, we'd need a way to flush the data from the cache device on bootup. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
