suns raid-z / zfs

["Keld Jørn Simonsen" <keld@dkuug.dk>]

Hi

any opinions on suns zfs/raid-z?
It seems like a good way to avoid the performance problems of raid-5
/raid-6

But does it stripe? One could think that rewriting stripes
other places would damage the striping effects.

Or is the performance only meant to be good for random read/write?

Can the code be lifted to Linux? I understand that it is already in
freebsd. Does Suns licence prevent this?

And could something like this be built into existing file systems like
ext3 and xfs? They could have a multipartition layer in their code, and
then the heuristics to optimize block access could also apply to stripe
access.

best regards
keld