HP StorageWorks 4000/6000/8000 - Enterprise Virtual Arrays - Cisco MDS 9124 E Fabric Switch for HP C-Class Bladesystem Using NPV with

With FlexAttach, you can perform the following tasks without the need to make SAN or storage
configuration changes:
• Preconfiguration—You can preconfigure the SAN for the addition of new servers whose WWPNs
are unknown, using the virtual WWPNs. Once the servers are available, you can bring them online
and into the fabric.
• Replacement (new server)—You can replace an existing server with a new server. FlexAttach assigns
a virtual WWPN to the server port.
• Replacement (spare server)—You can bring a spare server online by moving the virtual WWPN
from the current server port to the spare server port.
• Server redeployment—You can move a server to a different NPV switch (in the same fabric or
VSAN). FlexAttach allows you to manually create and transfer virtual WWPNs from one server
port to another server port.
NOTE:
Other tasks may require configuration changes. For more information about FlexAttach, see the Cisco
MDS 9000 Family CLI Configuration Guide . The terms pWWN and WWPN are used interchangeably.
Figure 53 shows a view of an HP c-Class BladeSystem using NPV with FlexAttach.
Blade enclosure
with 16 servers
Blade 16
Blade 15
Blade 14
Blade 13
Blade 12
Blade 11
Blade 10
Blade 9
Blade 8
Blade 7
Blade 6
Blade 5
Blade 4
Blade 3
Blade 2
Blade 1
Server-to-uplink
mapping (2:1)
HBA
aggregator
Server HBA ports, N_Ports
c-Class N_Port Virtualization
MDS 9124e NPV mode
Blade server
management
SAN
management
26468a
VC switch with
NPIV support
F_Port (NPIV)
F_Port (NPIV)
F_Port (NPIV)
F_Port (NPIV)
F_Port (NPIV)
F_Port (NPIV)
F_Port (NPIV)
F_Port (NPIV)
N_Port (NPIV)
N_Port (NPIV)
Uplink 2
N_Port (NPIV)
Uplink 3
N_Port (NPIV)
Uplink 4
N_Port (NPIV)
Uplink 5
N_Port (NPIV)
Uplink 6
N_Port (NPIV)
Uplink 7
N_Port (NPIV)
Uplink 8
Uplink 1
Figure 53 Cisco MDS 9124e Fabric Switch for HP c-Class BladeSystem using NPV with FlexAttach
.
SAN Design Reference Guide 195