[OpenAFS] AFS cache in ZFS?

[Derrick Brashear]

On Feb 7, 2008 12:56 PM, Tim Spriggs <tims@arizona.edu> wrote:
> Derrick Brashear wrote:
> > On Feb 7, 2008 12:16 PM, Brian Sebby <sebby@anl.gov> wrote:
> >
> >> Just wondering, has anyone used ZFS for the AFS cache backend?
> >>
> >
> > You can't.
> >
> > We could fix that by doing what we do for the disk cache on Leopard for Solaris.
> >
> > No one has yet. I don't know what the kernel API for opening files by
> > path (vnode_open equivalent) looks like but that's basically all you
> > need.
> >
> However, you can create a zvol and put a UFS filesystem on the zvol.
> Then the cache can go onto the UFS filesystem (which resides on a
> zpool). This type of solution is more attractive to some than others.


it is, but, the solution i mention will actually make us filesystem
agnostic for cache and quite possibly avoids kernel locking issues.