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

MDS600 dual domain, standard cabling
This example illustrates standard cabling for a high-availability configuration when using dual-port
SAS drives. In this configuration, note the following:
• One cable from each MDS600 I/O module to each switch offers high availability.
Devices and quantities
MDS600 storage enclosures: 1
MDS600 I/O modules: 4
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 MDS600 drawer 2, primary
I/O module, port 1
◦ Port 5: to MDS600 drawer 1, primary
I/O module, port 1
• Switch in interconnect bay 6:
◦ Port 1: to MDS600 drawer 2,
secondary I/O module, port 1
◦ Port 5: to MDS600 drawer 1,
secondary I/O module, port 1
Notes
• If sufficient ports on the switch are
available, HP recommends connecting an
additional cable from the switch to the I/O
modules, for additional performance. For
an example, see “MDS600 dual domain,
high-performance cabling” (page 98)
• As shown in this illustration, server bays
1–8 may access MDS600 drawer 2 and
server bays 9–16 may access MDS600
drawer 1. For more information, see “HP
3Gb SAS BL Switch port information”
(page 85).
MDS600 dual domain, standard cabling 97