Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.
I concur - one raidz2 vdev.
In that configuration, any two disks can fail simultaneously and your data is still intact.
With two raidz1 vdevs, two simultaneous disk failures on the same vdev will result in data loss.
I took delivery of a new HP Microserver yesterday, which will form the basis of my new NAS/fileserver project. My plan is to use FreeBSD 8.2 amd64, booting from a USB flash drive on the internal USB port and use four large disks in a ZFS raidz configuration.
I'm trying to work out which...