IBM NeXtScale System Planning And Implementation Manual page 107

Figure 4-12 shows the drive bay numbering. You should populate the drives in
this order.
Figure 4-12 Hard drive slot numbering
Rules for drive installation in the storage tray to ensure proper cooling:
When no a hard drive is not present in slots 0, 1, 2, and 3, a hard drive filler
must be installed to keep the proper air-flow. Slots 4, 5, and six can be empty
When a hard drive fails, it is suggested to keep the failed HDD installed until
replacing with a new hard drive.
Some drive bays can be left empty (without a filler). Only bays 0-3 require
fillers to ensure proper airflow.
Table 4-18 shows the contents of the slots and drive position.
Table 4-18 Drive bay position and fillers required according to the number of drives installed.
7x 6x
HDDs HDDs
Bay 0 HDD HDD
Bay 1 HDD HDD
Bay 2 HDD HDD
Bay 3 HDD HDD
Bay 4 HDD HDD
Bay 5 HDD HDD
Bay 6 HDD Empty



5x 4x 3x
HDDs HDDs HDDs
HDD HDD HDD
HDD HDD HDD
HDD HDD HDD
HDD HDD Filler
HDD Empty Empty
Empty Empty Empty
Empty Empty Empty
Chapter 4. IBM NeXtScale nx360 M4 compute node
 
 
2x 1x HDD
HDDs
HDD HDD
HDD Filler
Filler Filler
Filler Filler
Empty Empty
Empty Empty
Empty Empty
No HDD
Filler
Filler
Filler
Filler
Empty
Empty
Empty
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