I need to upgrade a Sun Enterprise 3500 from Solaris 7 to Solaris 10. I understand that the Enterprise 3500 have been discontinued by Sun. I need to know if I first must upgrade Solaris 7 to 8 or 9. Then ...upgrade to Solaris 10. Remember this being done on an Enterprise 3500, I have never installed software for a server. This server will be on a network with Windows workstations, possibly used as a LDAP server. whew!