Expansion Unit Technical Specifications - IBM N series Hardware Manual

5.6 Expansion unit technical specifications

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