The following restrictions apply to Oracle Exadata Storage Expansion Rack X6-2 flexible configurations:
Up to 19 Exadata storage servers are supported in the expansion rack.
Oracle Exadata Storage Expansion Rack X6-2 cannot be converted to Oracle Exadata Database Machine X6-2 rack.
Rack units U01, U20, U21, and U22 are reserved for the Cisco and Sun Datacenter InfiniBand Switch 36 switches.
Exadata storage servers are installed in the rack in the following order:
Up to 3 storage servers in U02 to U07, starting with U02.
Up to 4 storage servers in U08 to U15, starting with U08.
Up to 7 storage servers in U27 to U40, starting with U27.
Up to 2 storage servers in U26 to U23, starting with U26.
Up to 2 storage servers in U19 to U16, starting with U19.
1 storage server in U41 to U42.