Hi, In the doc: http://docs.sun.com/source/819-4359-15/CH3-maint.html#50495545_22785 of the 4540 it mentions you can have warm spares. Is there any zfs setting that labels a drive as a warm spare? Or does this not matter if you use the zpool autoreplace property? Thanks in advance, ~~sa -- ---------------- Shannon A. Fiume System Administrator shannon dot fiume at sun dot com