I/O module bays 3 and 4
I/O module bays 3 and 4 support SAS connectivity modules or SAS RAID
controller modules.
v If you are using the RAID storage solution, you must install two SAS RAID
controller modules, one in I/O module bay 3 and one in I/O module bay 4. SAS
RAID controller modules require a SAS expansion card option in each blade
server that will access the integrated shared storage.
v If you are using only one SAS connectivity module, install the module in I/O
module bay 3. You can install an additional SAS connectivity module in bay 4. A
SAS connectivity module requires a SAS expansion card option in each blade
server that will access the integrated shared storage.
The two bays also support Ethernet switch modules, Fibre Channel switch
modules, and pass-thru modules (optical and copper) if the disk storage modules
are not being used.
Important: I/O module bays 3 and 4 must both contain the same type of switch
(either SAS connectivity modules, SAS RAID controller modules, Ethernet switch
modules, pass-thru modules, or Fibre Channel switch modules).
Power modules
The BladeCenter S system supports up to four autoranging power modules that
are capable of supporting either 110 V ac or 220 V ac.
Power module
AC power LED
DC power LED
Fault LED
There are two types of power modules. These power modules are identical except
for the power cord connector; one power module has a C14 connector and the
other power module has a C20 connector. Both types of power modules can be
installed in the same chassis.
20 BladeCenter S Type 7779/8886: Installation and User's Guide
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