Selecting the interconnect bay – HP 6Gb SAS Switch for HP BladeSystem c-Class User Manual

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For assistance, HP strongly recommends using the HP BladeSystem Deployment Guide for Solutions
with 6Gb SAS BL Switches and External SAS Storage Enclosures. The deployment guide provides
guidelines, instructions, and configuration examples for solutions centered around an HP
BladeSystem c-Class enclosure with server blades, SAS BL switches, SAS controller cards, and
external SAS storage enclosures.

Selecting the interconnect bay

The HP 6Gb SAS BL Switch is supported for use in the following c-Class enclosure interconnect
bays:

Supported interconnect bay

BladeSystem c-Class enclosure model

3 and 4

c3000

3, 4, 5, 6, 7, and 8

c7000

When using P721m controllers, the 6Gb SAS BL Switch cannot be installed in c7000 interconnect bays 3 and 4. (The
P721m controller cannot be installed in server expansion slot 1, which maps to interconnect bays 3 and 4.)

Each interconnect bay row in an HP BladeSystem c3000 and c7000 enclosure maps to servers
via the server expansion slot in which the HP Smart Array controller card is installed.

Before installing the 6Gb SAS BL Switch in the c-Class enclosure, confirm that the controller and
the switch are installed in server expansion slots and enclosure interconnect bays that map to one
another.

NOTE:

Different controller models are required for the different types of external storage or

backup devices being connected to the switch, and these different controller models may be limited
for installation in specific expansion slots which, in turn, may limit which interconnect bays that
the switch can be installed in. For example, when using the P721m controller, because the P721m
controller can only be installed in server expansion slot 2, switches in these environments can only
be installed in c3000 interconnect bays 3 and 4 or c7000 interconnect bays 5, 6, 7, and 8.

For information about supported SAS controllers, see the HP 6Gb SAS BL Switch QuickSpecs.

For information about mappings, see user documents for your BladeSystem c-Class enclosure model.

The following tables list the mappings between server expansion slots and BladeSystem enclosure
interconnect bays. For information about which expansion slots are supported for use with your
controller model, see the user documents for the controller.

Mappings for the c3000 BladeSystem enclosure:

BladeSystem

c-Class

interconnect bay

Expansion

slot

Server type

BladeSystem

c-Class

enclosure

model

3/4

Half height

c3000

Full height

Double wide

Installation procedures