HP Direct-Connect External SAS Storage for HP BladeSystem Solutions Depoyment Guide

Devices and quantities
MSA2012sa controller enclosures: 2
MSA2000 drive enclosures: 6
c7000 enclosures: 1
3Gb SAS BL Switches: 4
Server blade types: double-density
Connection details
• Switch in interconnect bay 5:
◦ Port 1: to MSA #2, SAS port A0
◦ Port 2: to MSA #1, SAS port A0
• Switch in interconnect bay 6:
◦ Port 1: to MSA #2, SAS port B0
◦ Port 2: to MSA #1, SAS port B0
• Switch in interconnect bay 7:
◦ Port 1: to MSA #2, SAS port A1
◦ Port 2: to MSA #1, SAS port A1
• Switch in interconnect bay 8:
◦ Port 1: to MSA #2, SAS port B1
◦ Port 2: to MSA #1, SAS port B1
Notes
• As shown, when connecting MSA2012
controllers to two pairs of SAS BL Switches,
only a single cable per switch can be
connected, because each controller has
only two ports, and needs to connect to
two different switches. This configuration
supports high availability, but, during a
failover, there will be a slight performance
reduction.
112 Deployment examples