112 Troubleshooting and problem solving
CRUs addressing 2U 12-drive chassis
NOTE: The 2U12 chassis is configurable as either an RBOD (DS4200/DS2200) or an EBOD (DS EXP).
NOTE: Figure 77 (page 115) shows isometric pictorial representations of controller modules and expansion
modules used in 2U 12-drive Lenovo ThinkSystem enclosures. Modules are shown oriented for insertion into IOM
slot A located on the enclosure rear panel.
Table 26 DS4200/DS2200/DS EXP product components for 2U 12-drive chassis
Item Enclosure component description
1 Disk drive (LFF)
a) 3.5"
disk drive module (disks of differing type/speed and storage capacity: SAS, SSD)
b) Dummy drive carrier module (blank to maintain optimum air flow within enclosure)
2 Ear components (not customer replaceable)
a) Left ear assembly
b) Right ear assembly
3 Chassis (sheet metal enclosure that is configurable as an RBOD or EBOD)
4 Midplane PCB (included with chassis; not available separately)
5 Power cooling module (PCM) available as AC unit (chassis uses two PCMs of same model type)
6 Expansion module for storage expansion I/O (used when chassis is configured as an EBOD)
a) 3-port 12 Gb/s SBB expansion module
7 Controller module host interfaces for storage system (used when chassis is configured as an RBOD)
a) DS4200 4-port FC/iSCSI supports (8/16Gb/s FC; 10GbE iSCSI; or 1Gb/s iSCSI) qualified SFP
options*
b) DS2200 2-port FC/iSCSI supports (8/16Gb/s FC; 10GbE iSCSI; or 1Gb/s iSCSI) qualified SFP
option*
c) DS4200 4-port mini-SAS (12Gb/s) supports various qualified SFF-8644 to SFF-8644 or SFF-8088
options
d) DS2200 2-port mini-SAS (12Gb/s) supports various qualified SFF-8644 to SFF-8644 or SFF-8088
options
8 Small form-pluggable SFP connectors
a) SFP transceiver: 8/16Gb/s FC; 10GbE iSCSI; 1Gb/s iSCSI
9 Rail kit (variable attachment options)
a) Rack mount kit, shelf, short, all HW
10 Cable kit [Cable package: standard HD mini-SAS (SFF-8644) to HD mini-SAS (SFF-8644)]
Cable kit [Cable package: standard HD mini-SAS (SFF-8644) to mini-SAS (SFF-8088)]
Cable kit [Cable package: USB Type B; CLI (USB)]
11 AC power cord compatible with AC PCM
*DS4200 models support FC and iSCSI SFPs used in combination; whereas DS2200 models do not.
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