HP 3Gb SAS Switch for HP BladeSystem c-Class - Manual (Page 20)

Shared storage—dual controller, standard cabling
This example illustrates standard cabling for a high-availability configuration. In this configuration,
note the following:
• Cabling between the two switches and the two controllers in an MSA2000sa controller enclosure.
• One cable from each switch to the MSA offers high availability.
Devices and quantities
MSA2012sa controller enclosures: 1
MSA2012sa controllers: 2
BladeSystem c7000 enclosures: 1
3Gb SAS BL switches: 2
Server blade types: half-height and full-height
Connection details
• Switch in interconnect bay 5:
• Port 1: to MSA2012sa SAS port A0
• Switch in interconnect bay 6:
• Port 1: to MSA2012sa SAS port B0
Notes
• If additional ports on the MSA controllers
or 3Gb SAS BL Switch are available, HP
recommends connecting an additional
cable from the switch to the MSA control-
lers, for additional performance and fault
tolerance For an example, see
Shared
storage—dual controller, optimal
cabling
, page 21
Installation procedures 20