Lenovo ThinkServer RD550 User Manual
Page 23
Internal drives
Internal drives are devices that your server uses to read and store data. The internal drives supported
by your server vary by model.
• Internal storage drive
– In the front:
Your server supports one of the following storage drive configurations:
Drive bay size
Drive bay quantity
Drive type
3.5-inch
4
Hot-swap, SATA or SAS
Hard disk drive or 2.5-inch solid-state drive
2.5-inch
12
Hot-swap, SATA or SAS
Hard disk drive or solid-state drive
Note: You can install a 2.5-inch solid-state drive into a 3.5-inch-drive bay. For more information, see
“Installing a 2.5-inch solid-state drive into a 3.5-inch hard-disk-drive bay” on page 122.
– In the rear: (for server models with the four 3.5-inch drives only)
Drive bay size
Drive bay quantity
Drive type
2.5-inch
2
Hot-swap, SATA
Hard disk drive or solid-state drive
Notes:
– SATA is the acronym for Serial Advanced Technology Attachment.
– SAS stands for Serial Attached SCSI (SCSI is the acronym for Small Computer System Interface).
– You can install SATA hard disk drives, SAS hard disk drives, and solid-state drives into the same server.
The following server models also are available:
– Server models without hard disk drives or solid-state drives
– Server models without hard disk drives, solid-state drives, backplanes, AnyRAID adapters, and related
cables
• Optical drive
– One slim SATA optical drive in some models
For the location information about the internal drives or drive bays, see “Server components” on page 25.
Expansion slots
• Two riser card assembly slots on the system board
• One or two PCI Express (PCIe) card slots on the riser card
• One or two AnyFabric slots at the rear of the server
For detailed information, see “Rear view of the server” on page 21.
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