Backplane Configuration For 4 Drives; Backplane Configurations For 8 Drives - Lenovo System x3750 M4 Installation And Service Manual

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Cofiguration

You can install a combination of 2.5-inch and 1.8-inch SAS/SATA drive backplanes in the server for the

maximum drive capacity. However, any SAS/SATA adapter that you install in the server must be capable

of supporting two internal, 4-lane SAS/SATA signal connectors. The following sections list the supported

SAS/SATA drive backplane configurations, the number of drives that each configuration supports, and

information on connecting the SAS cables.

• When you upgrade drive backplane configurations, you must install all 1.8-inch solid state drive

backplanes to the right of all 2.5-inch drive backplanes. All 2.5-inch backplanes must be installed to the

left of all 1.8-inch backplanes.

• The drive bay IDs can vary, depending on the combination of the SAS/SATA drive backplanes installed in

the server (see "Drive IDs" on page 56 for more information).

• The 8x2.5-inch hot-swap drive backplane with controller expander must always be installed in backplane

slots 3 and 4, see "Connecting the SAS cables" on page 64 for more information on cabling.

Backplane configuration for 4 drives

This section contains backplane configuration information to support four drives.

The following illustration shows the supported backplane configuration to support four drives.

This configuration consists of one 4x2.5-inch drive backplane and requires one SAS signal cable.

This section contains backplane configuration information to support eight drives.

The following illustration shows the supported backplane configurations to support eight drives.

This configuration consists of two 4x2.5-inch drive backplanes and requires two SAS signal cables.

Installing optional devices