IBM System x3950 X6
18
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
The following table shows the backplanes that are required per Storage Book and the number of
controllers that are required. Note that the table shows the exact number of controllers supported for each
drive/backplane configuration, no more, no fewer.
Table 9. Drive combinations per Storage Book
Drive combination
Backplanes required
Number of
controllers
supported
4x 2.5-inch hot-swap drive bays
1x IBM 4x 2.5" HS 12Gb SAS HDD Backplane, 44X4104
1
8x 2.5-inch hot-swap drive bays
2x IBM 4x 2.5" HS 12Gb SAS HDD Backplane, 44X4104
1
4x 2.5-inch hot-swap drive bays
+
8x 1.8-inch hot-swap SSD bays
1x IBM 4x 2.5" HS 12Gb SAS HDD Backplane, 44X4104
1x IBM 8x 1.8" HS 12Gb SAS HDD Backplane, 44X4106
2
8x 1.8-inch hot-swap SSD bays
1x IBM 8x 1.8" HS 12Gb SAS HDD Backplane, 44X4106
1
16x 1.8-inch hot-swap SSD bays 2x IBM 8x 1.8" HS 12Gb SAS HDD Backplane, 44X4106
2
