IBM x3850 X6 Planning And Implementation Manual page 93

Figure 3-20 shows the location of SAS backplanes in the Storage Book as well as the RAID
controllers that connect to the backplanes.
RAID adapter (two
slots for two
Figure 3-20 SAS backplanes location in the Storage Book
Table 3-9 shows the two backplanes.
Table 3-9 Internal storage expansion options
Part Feature Name and description
number code
44X4104 A4A6 IBM 4x 2.5" HS 12Gb SAS HDD Backplane
44X4106 A4A7 IBM 8x 1.8" HS 12Gb SAS HDD Backplane
Table 3-10 shows the required SAS backplanes for all combinations of hard drives supported
by the X6 Storage Book.
Table 3-10 Drive and backplane combinations per Storage Book
Drive bay Backplanes required
combination
4x 2.5-inch bays
8x 2.5-inch bays
4x 2.5-inch bays +
8x 1.8-inch bays
8x 1.8-inch bays
16x 1.8-inch bays
1x IBM 4x 2.5" HS 12Gb SAS HDD Backplane, 44X4104
2x IBM 4x 2.5" HS 12Gb SAS HDD Backplane, 44X4104
1x IBM 4x 2.5" HS 12Gb SAS HDD Backplane, 44X4104
1x IBM 8x 1.8" HS 12Gb SAS HDD Backplane, 44X4106
1x IBM 8x 1.8" HS 12Gb SAS HDD Backplane, 44X4106
2x IBM 8x 1.8" HS 12Gb SAS HDD Backplane, 44X4106
SAS backplanes
Maximum Maximum
supported supported
x3850 X6 x3950 X6
2 4
2 4
Controllers
needed
1
1 or 2
2
1
2
Chapter 3. Product information
77