Dual I/O connectivity topology with enclosure redundancy is shown in the following figure.
Figure 7. Dual I/O connectivity topology with enclosure redundancy
The following table lists the maximum number of the E1012 and E1024 in a chain on the same adapter.
Table 3. Maximum number of the E1012 and E1024 in a chain on the same adapter
Single I/O chain
E1012 qty
0
1
2
3
4
5
6
7
8
E1024 qty
8
7
6
5
4
3
2
1
0
Dual I/O chain
E1012 qty
0
1
2
3
4
E1024 qty
4
3
2
1
0
The following table lists ordering information for the expansion modules and related connectivity options.
Table 4. Expansion modules and connectivity options
Description
Part
number
Feature
code
Max qty per one
enclosure
Expansion modules
Lenovo Storage Expansion SAS IO Module
00WC085
AT27
2
Connectivity cables - Mini-SAS Host Adapter to Expansion and Expansion to Expansion
External MiniSAS 8088/MiniSAS 8088 0.6m cable
00WE754
AT1A
2*
External MiniSAS 8088/MiniSAS 8088 1m cable
00WE755
AT1B
2*
External MiniSAS 8088/MiniSAS 8088 2m cable
00WE756
AT1C
2*
Connectivity cables - Mini-SAS HD Host Adapter to Expansion
1.5m HD-miniSAS to miniSAS SAS Cable
00D5224
A3HX
2*
3m HD-miniSAS to miniSAS SAS Cable
00D5226
A3HY
2*
* One cable per SAS expansion module.
Lenovo Storage E1012 and E1024 Disk Expansion Enclosures
8
