On Wednesday 13 February 2008, Andi Kleen wrote: > Chris Mason <[EMAIL PROTECTED]> writes: > > Yes, SSDs are a big target of mine, and so the parts that are not > > currently favorable for SSDs will be changed. The big problem right now > > is that btrfs writes to a fixed super block for every commit. That will > > change to a rotating set of fixed super blocks to lower wear and improve > > redundancy. > > The firmwares of the SSDs tend to do that anyways (except on embedded > systems where the flash is directly connected without firmware, but that is > probably not the right target for btrfs). So doing it in the FS is likely > redundant.
We need super block copies regardless, and eliminating hot spots on the device is a good thing in general. Even for traditional storage, frequently written sectors are the most likely to fail. -chris _______________________________________________ Btrfs-devel mailing list [email protected] http://oss.oracle.com/mailman/listinfo/btrfs-devel
