This numbering is based on "Configurations with up to 24 HDD/SSD
modules" on page 211.
HDD extension boxes overview
The 8x 2.5-inch HDD/SSD extension box can be equipped with a 8x 2.5-
inch HDD/SSD backplane or a 4x 2.5-inch PCIe backplane.
Figure 89: 8x 2.5-inch HDD/SSD extension box
The 8x 2.5-inch HDD/SSD extension box occupies accessible drive
bays 2 and 3.
Hard disk drive (HDD) / solid state disk (SSD)
174 Upgrade and Maintenance Manual TX1330 M4