IBM N Series - Expansion Unit Technical Specifications

58 IBM System Storage N series Hardware Guide
5.6 Expansion unit technical specifications
Table 5-7 provides the expansion shelf specifications.
Table 5-7 Expansion shelf specifications
EXN3000 EXN3200 EXN3500
Machine type 2857-003 2857-306 2857-006
OEM model DS4243 / DS4246 DS4486 DS2246
Connectivity SAS SAS SAS
Optical SAS
support
Ye s Ye s Ye s
I/O Modules IOM3 or IOM6 IOM6 IOM6
MetroCluster
support
Ye s N o Ye s
Form factor
Rack units 4 RU 4 RU 2 RU
Drives per shelf 24 48 24
Drive form factor 3.5-inch 3.5-inch 2.5-inch
Drive carrier Single drive Dual drive Single drive
Storage tiers supported
Ultra Perf. SSD Yes No Yes
High Perf. HDD Yes No Yes
High Capacity
HDD
Ye s Ye s N o
Self encrypting
HDD
Ye s N o Ye s