Disk Drive Module; Drive Carrier Module In 2U Chassis - Lenovo ThinkSystem DS Series Hardware Installation And Maintenance Manual

IMPORTANT: RBOD/EBOD configurations:
• When the expansion module shown above
storage, its middle HD mini-SAS expansion port ("B") is disabled by the firmware. See also
(page 68)
•
The Ethernet port on the expansion module is not used in RBOD/EBOD configurations, and is disabled.

Disk drive module

DS Series and DS EXP/D3284 supports different disk drive modules for use in 2U and 5U enclosures. The disk
drive modules used in 2U enclosures are referred to as drive carrier modules, whereas those used in 5U enclosures
are referred to as DDICs (Disk Drive in Carrier).

Drive carrier module in 2U chassis

The drive carrier module comprises a hard disk held by a carrier.
• Each 2U12 drive slot holds a single low profile 1.0-inch high, 3.5-inch form factor disk drive in its carrier. The
disk drives are horizontal. A 2.5" to 3.5" carrier adapter is available to accommodate 2.5" disk drives.
• Each 2U24 drive slot holds a single low profile 5/8-inch high, 2.5-inch form factor disk drive in its carrier. The
disk drives are vertical.
The carriers have mounting locations for:
•
Direct dock SAS drives.
A sheet steel carrier holds each drive, which provides thermal conduction, radio frequency, and electro-magnetic
induction protection, and physically protects the drive.
The front cap also has an ergonomic handle which gives the following functions:
•
Secure location of the carrier into and out of drive slots.
•
Positive spring-loading of the drive/midplane connector.
The carrier can use this interface:
•
Dual path direct dock Serial Attached SCSI.
(Figure 43) is used with DS Series controller modules for adding
Figure 55
Disk drive module 53