2 3 Optical-drive bay
Depending on the model, the server might come with an optical drive or a tape drive installed in the lower
5.25-inch optical-drive bay. The upper 5.25-inch optical-drive bay is for a secondary optical drive. Some
models have a secondary optical drive installed.
4 5 3.5-inch hot-swap drive bays
The drive bays are used to install 3.5-inch hot-swap drives. When you install drives, follow the order of the
drive bay numbers. The EMI integrity and cooling of the server are protected by having all drive bays
occupied. The vacant drive bays must be occupied by drive bay fillers or drive fillers.
For more information about drive LEDs, see
“Drive LEDs” on page 30.
Sixteen 2.5-inch hot-swap drives bays
Figure 5. Front view of server models with sixteen 2.5-inch hot-swap drives bays
Table 5. Components on server models with sixteen 2.5-inch hot-swap drives bays
1 Front I/O module 2 Optical-drive bay 2
3 Optical-drive bay 1 4 2.5-inch hot-swap SAS/SATA drive bays (Bay 8-15)
5 2.5-inch hot-swap SAS/SATA drive bays (Bay 0-7)
1 Front I/O module
For more information about the front I/O module, see
“Front I/O module” on page 23.
2 3 Optical-drive bay
18
ThinkSystem ST250 V3 System Configuration Guide