Backplane Configuration For 32 Drives; Connecting The Sas Cables - IBM System x3750 M4 Installation And Service Manual

Backplane configuration for 32 drives

This information describes the supported backplane configuration for 32 drives.
About this task
The following illustration shows the supported backplane configuration to support
32 drives.

Connecting the SAS cables

This section provides information on how to connect the SAS cables to the drive
backplanes.
About this task
The following table provides information for connecting the SAS cables to the
drive backplanes (BP) based on the backplane slot and supported drive backplane
configurations:
64
System x3750 M4 Types 8722 and 8733: Installation and Service Guide
This configuration consists of four 8x1.8-inch drive backplanes and requires
eight SAS signal cables.
0 1 2 3 4 5 6 7 8 9 10 11
Table 15. Connecting the SAS cables to the drive backplanes (BP) based on the
configurations
Drive backplane BP 1
4x2.5-inch drive
v Connect the
backplane
SAS cable
from BP 1 to
the SAS signal
connector port
0 on the
system board.
8x2.5-inch drive
v Connect one SAS cable from BP
backplane
1 to the SAS signal connector
port 0 on the system board.
v Connect one SAS cable from BP
2 to the SAS signal connector
port 1 on the system board.
8x2.5-inch drive
backplane with
controller
expander
12 13 14 15 16 17 18 19 20 21
BP 2 BP 3
v Connect the v Connect the
SAS cable SAS cable
from BP 2 to from BP 3 to
the SAS signal port 0 on the
connector port PCIe adapter.
1 on the
system board.
v Connect one SAS cable from BP
3 to port 0 on the PCIe adapter.
v Connect one SAS cable from BP
4 to port 1 on the PCIe adapter.
v Connect one SAS cable from BP
3 to the SAS signal connector
port 0 on the system board
v Connect one SAS cable from BP
4 to the SAS signal connector
port 1 on the system board
22 23 24 25 26 27 28 29 30 31
BP 4
v Connect the
SAS cable
from BP 4 to
port 1 on the
PCIe adapter.