IBM System x3850 X6 19
Backplanes
All standard models ship with four 2.5-inch SAS/SATA hot-swap hard disk drive bays. The following table
shows the internal storage expansion options that are available.
Table 7. Internal storage expansion options
Part
number
Feature
code
Description Maximum
supported
x3850 X6
44X4104 A4A6 IBM 4x 2.5" HS 12Gb SAS HDD Backplane 2
44X4106 A4A7 IBM 8x 1.8" HS 12Gb SAS HDD Backplane 2
The backplanes are connected to one or two RAID controllers or HBAs depending on the number and type
of backplane that is installed. The adapters are installed in PCIe slots in the Storage Book, as shown in
the following figure.
Figure 7. Storage Book