I'm struggling to understand why ZFS makes enterprise storage obsolete. One of the benefits of the SAN is that it is shared amongst a number of servers.
How does ZFS help with that? Assuming you install SmartOS as virtualisation host, you'd still need some kind of shared storage.
[Edit:] The reason I point this out is that if you lose a host, you lose all VMs running on that host. And then you won't easily be able to get them back online on another host if you've lost your storage as well.
But you were able to do this before SmartOS... I'm curious about this too, and how Joyent have architected their cloud arrangement. I feel like perhaps hypervisors have local ZFS storage, as opposed to large SAN-backed virtual machines, but I can't really find much useful information on how Joyent/SmartOS implement/architect storage...
How does ZFS help with that? Assuming you install SmartOS as virtualisation host, you'd still need some kind of shared storage.
[Edit:] The reason I point this out is that if you lose a host, you lose all VMs running on that host. And then you won't easily be able to get them back online on another host if you've lost your storage as well.