http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1009857
new and improved roll up jobs
zfs ram disk as zil, a really bad idea
ramdiskadm -a fast 256m
zpool add zfs-hybrid2 log /dev/ramdisk/fast
zpool remove zfs-hybrid2 /dev/ramdisk/fast