160 IBM eX5 Implementation Guide
Figure 4-34 x3690 with one 8x 2.5-inch backplane and one eXFlash 8x 1.8-inch SSD backplane
Configurations with 16 drives
Figure 4-35 and Figure 4-36 both show the full sixteen 2.5-inch drive configuration. Both
configurations require four SAS cables.
Figure 4-35 x3690 with four IBM 4x 2.5-inch HS SAS HDD backplanes
Figure 4-36 x3690 with two IBM 8x 2.5-inch HS SAS HDD backplanes
Figure 4-37 illustrates another 16-drive configuration with one 8x and two 4x backplanes.
Also, you can configure this system with the two 4x backplanes for bays 0 - 7 and the 8x
backplane for bays 8 - 15. Four SAS cables are required.
Figure 4-37 x3690 with one 8x 2.5-inch backplane and two 4x 2.5-inch backplanes
Figure 4-38 on page 161 shows two 4x backplanes and one eXFlash backplane. You can use
one 8x backplane instead of the two 4x backplanes that are shown here. Four SAS cables are
used in this configuration.
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