HP ProLiant SL210t Gen8 Server - Manual (Page 15)

Component identification 15
In a 24-drive bay SFF drive configuration, drives are numbered from left to right in each box.
o Drives in the first box correspond to node 1.
o Drives in the second box correspond to node 2.
o Drives in the third box correspond to node 3.
o Drives in the fourth box correspond to node 4.
• Drive bay numbering for two 2U nodes
In an 8-drive bay LFF drive configuration, drives are numbered from top to bottom in each box.
o Drives in the first and second box correspond to node 1.
o Drives in the third and fourth box correspond to node 3.
In a 24-drive bay SFF drive configuration, drives are numbered from left to right in each box.
o Drives in the first box correspond to node 1.