Does anyone know how to recover an iSCSI extent that has been overwritten?  I moved my SAN the other day to its new home and when I hooked it up something was amiss.  So I decided to reinstall FreeNAS and import my drives.  Somehow that didn't work as planned and it seems that my iSCSI extent with all my VM's on it is blank!  I assume it's been overwritten but I'm not positive.  I haven't written any data to that set of drives, except to make it available again to my VM servers.  The VM servers and SAN are on separate networks, if that matters.

Any hints that I can try?  I'm OK with Linux, but not good at all with FreeBSD and Open Solaris.

Thanks in advance!