HP OneView - Manual (Page 137)

18.3.1 Fibre Channel network types
The Virtual Connect interconnect modules in enclosures support two types of Fibre Channel
connections to storage devices:
•
Fabric attach connections—The enclosure interconnects connect to data center SAN fabric
switches.
•
Direct attach connections—Also called Flat SAN, in which the enclosure interconnects connect
directly to a supported storage device, such as an HP 3PAR StoreServ Storage system.
You cannot change the type of a Fibre Channel network, but you can delete the network from the
appliance, and then add the network as a different type.
A logical interconnect can use both Direct attach storage and Fabric attach storage at the same
time.
Figure 12 Direct attach and Fabric attach Fibre Channel networks
Enclosure UID
Enclosure Interlink
PS 3 PS 2 PS 1 PS 6 PS 5 PS 4
OA1 OA2
Remove management modules before ejecting sleeve
FAN 6 FAN 10
FAN 1 FAN 5
2 1
3
5
7
4
6
8
iLO UID Active Reset iLO UID Active Reset
HP VC FlexFabric 10Gb/24-Port Module
S H A R E D : U P L I N K o r X - L I N K X3 X4 X1 X2 X5 X6 X7 X8 UID
HP VC FlexFabric 10Gb/24-Port Module
S H A R E D : U P L I N K o r X - L I N K X3 X4 X1 X2 X5 X6 X7 X8 UID
1 2 Vdc 1 2 Vdc HP StorageWorks 4/32B SAN Switch
0 1 2 3 8 9 10 11 16 17 18 19 24 25 26 27 31 30 29 28 23 22 21 20 15 14 13 12 7 6 5 4 1 2 Vdc 1 2 Vdc HP StorageWorks 4/32B SAN Switch
0 1 2 3 8 9 10 11 16 17 18 19 24 25 26 27 31 30 29 28 23 22 21 20 15 14 13 12 7 6 5 4
SAN A SAN B
SAN uplink
c onnections
(Fabric attach)
SAN Switch A SAN Switch B
HP BladeSystem c7000 Enclosure
HP 3PAR Storage System
SAN uplink
connections
(Direct attach)
Fabric-attached HP storage devices
18.3.2 Fabric attach Fibre Channel networks
SAN infrastructures typically use a Fibre Channel switching solution involving several SAN switches
that implement NPIV (N-Port ID Virtualization) technology. NPIV uses N-ports and F-ports to build
a Fibre Channel SAN fabric. NPIV enables multiple N_Ports to connect to a switch through a single
F_Port, so that a virtual server can share a single physical port with other servers, but access only
its associated storage on the SAN.
When you configure a Fabric attach Fibre Channel network, the port you choose for the uplink
from the enclosure interconnect to the storage SAN must support NPIV (N_Port ID Virtualization).
18.3.3 Direct attach Fibre Channel networks
The Direct attach Fibre Channel solution, also called the Flat SAN solution, eliminates the need for
a connection from the enclosure interconnects to a Fibre Channel SAN switch. This means you can
connect the enclosure interconnects directly to the storage system. The port you choose for the
uplink from the enclosure interconnect to the storage system must support NPIV.
18.3 About Fibre Channel networks 137