Though I would (today) be willing to give ZFS a try, my (VERY large) adv_file 
devices were created back around mid-2004 I think.  At that time even Solaris 
10 was not fully out, let alone ZFS (Solaris 8 was the approved OS here at the 
time); Veritas ruled that land hands-down.  And we had a spare license for it 
that could be moved.  :)  We did do an initial test with a 1 TB UFS device (the 
limit in Solaris 8 ) and it was absolutely miserable.

Unfortunately, having 30 TB (and about 200 LUNs) of VxVM/VxFS disk under the 
control of one server means today that an upgrade of our EBS Server will be 
done through a Veritas deport/import, and not a new system built with ZFS in 
mind.  Not a big deal for me, as we even use the disk for our Incremental 
backups and its done quite well.

--TSK

-----=====-----
Timothy Kimball, Sungard/BRASS

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