Apple Xsan 2 (Third Edition) - Manual (Page 8)

Setting Up a SAN 8
Metadata
controller
Clients Standby
controller
Fibre
Channel switch
Ether
net (public)
Ether
net (pr
iv
at
e)
Intranet/
Internet
Ethernet switches
Metadata RAID
array (LUN)
RAID
arrays
(LUNs)