Ubuntu + ZFS instalation on USB raid
i have a hp microserver with 5xSata port that i want to use in a zfs raid setup under ubuntu. of course using 5 ports for hdd ileaves me no room for the os installation. So it is safe and reliable to install the os on a usb stick ( or 2 usb sticks using raid1 if posible, i havemt't checked yet if raidi is possible with sticks). we'll this help, will this be enough for my next zfs setup or i shall go with anither zfs alternative like freenas?
thanks in advance