pupp, thanks for the information. but is its integrated volume management better than SVM that we use (with ufs i believe)?
starsol - it depends on what you want to do. however, one of the biggest differences between zfs and svm is zfs eliminates the need for a separate volume manager. you need svm to manage volumes such as a ufs filesystems. zfs has this feature integrated. it really boils down to ease of use.
i would take a look at
Solaris ZFS Administration Guide - Sun Microsystems
there are a lot of differences between zfs and ufs. it takes some time to get your head around some of the ideas regarding zfs but once you understand you will wonder why you ever used ufs (personal opinion).
Thanks pupp... I will look into the ZFS