Following yesterdays revealing that ZFS is not the default file system in Leopard, Information Week has had a quick word with Brian Croll, senior director of Mac OS X Product Marketing.

The product expert stated the following when asked about ZFS on Leopard;

“ZFS is not the default file system for Leopard. We are exploring it as a file system option for high-end storage systems with really large storage. As a result, we have included ZFS — a read-only copy of ZFS — in Leopard.”

“Read-only means that at a later date, if there are ZFS volumes, those systems would be able to read ZFS volumes,” Croll added. “You cannot write data into the system. It will allow you to read ZFS volumes later.”