Lenovo ThinkSystem DS Series Hardware Installation And Maintenance Manual

Also see for ThinkSystem D3284: Hardware installation and maintenance guide

Contents

Disk drive module 53IMPORTANT: RBOD/EBOD configurations:• When the expansion module shown above (Figure 43) is used with DS Series controller modules for addingstorage, its middle HD mini-SAS expansion port (“B”) is disabled by the firmware. See also Figure 55(page 68)• The Ethernet port on the expansion module is not used in RBOD/EBOD configurations, and is disabled.Disk drive moduleDS Series and DS EXP/D3284 supports different disk drive modules for use in 2U and 5U enclosures. The diskdrive modules used in 2U enclosures are referred to as drive carrier modules, whereas those used in 5U enclosuresare referred to as DDICs (Disk Drive in Carrier).Drive carrier module in 2U chassisThe 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. Thedisk 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. Thedisk 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-magneticinduction 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.