HP P2000 HP BladeSystem Deployment Guide for Solutions with 6Gb SAS Switches a - Page 58

Shared storage—P2000 G3 SAS MSA dual-controller, single-domain optimal cabling

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Shared storage-P2000 G3 SAS MSA dual-controller, single-domain optimal cabling This example illustrates standard cabling for a dual-controller P2000 G3 SAS MSA enclosure. In this configuration, note the following: • One cable from the single switch to each MSA controller offers dual-path connectivity between the MSA and the switch. • Because there is only one switch in the c-Class enclosure interconnect bay row, connectivity from the switch to the server will be single-path. Devices and quantities P2000 G3 SAS MSA controller enclosures: 1 P2000 drive enclosures: 0 BladeSystem c7000 enclosures: 1 SAS BL Switches: 1 Server blade types: half-height and full-height Connection details • Switch in interconnect bay 5: ◦ Port 1: to P2000 G3 SAS MSA port A1 ◦ Port 2: to P2000 G3 SAS MSA port B1 Notes • The additional cable from the P2000 G3 SAS MSA to the single 6Gb SAS BL Switch provides fault-tolerance at the array level. • To provide fault-tolerance within the BladeSystem environment, an additional switch must be included in the configuration. For an example, see "Shared storage-P2000 G3 SAS MSA dual-controller, dual-domain, standard cabling" (page 59) 58 Deployment examples

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Shared storage—P2000 G3 SAS MSA dual-controller, single-domain optimal cabling
This example illustrates standard cabling for a dual-controller P2000 G3 SAS MSA enclosure. In
this configuration, note the following:
•
One cable from the single switch to each MSA controller offers dual-path connectivity between
the MSA and the switch.
•
Because there is only one switch in the c-Class enclosure interconnect bay row, connectivity
from the switch to the server will be single-path.
Devices and quantities
P2000 G3 SAS MSA controller enclosures: 1
P2000 drive enclosures: 0
BladeSystem c7000 enclosures: 1
SAS BL Switches: 1
Server blade types: half-height and full-height
Connection details
•
Switch in interconnect bay 5:
◦
Port 1: to P2000 G3 SAS MSA port A1
◦
Port 2: to P2000 G3 SAS MSA port B1
Notes
•
The additional cable from the P2000 G3
SAS MSA to the single 6Gb SAS BL Switch
provides fault-tolerance at the array level.
•
To provide fault-tolerance within the
BladeSystem environment, an additional
switch must be included in the configuration.
For an example, see
“Shared
storage—P2000 G3 SAS MSA
dual-controller, dual-domain, standard
cabling” (page 59)
58
Deployment examples