IBM System x3950 X6
39
The controllers support connectivity to the IBM System Storage external expansion enclosures that are
listed in the following table. Up to nine expansion enclosures can be daisy-chained per one controller
external port. For better performance, distribute expansion enclosures evenly across both controller ports.
Table 23. IBM System Storage external expansion enclosures
Part
number
Description
Maximum quantity
supported per one controller
174712X
IBM System Storage EXP2512 Express
18
174724X
IBM System Storage EXP2524 Express
9
The external SAS cables that are listed in the following table support connectivity between external
expansion enclosures and the controller.
Table 24. External SAS cables for external storage expansion enclosures
Part
number
Description
Maximum quantity supported per
one enclosure
ServeRAID M5120 - Server to Expansion enclosure connectivity (Mini-SAS x4 to Mini-SAS x4)
39R6531
IBM 3 m SAS Cable
1
39R6529
IBM 1 m SAS Cable
1
ServeRAID M5225 - Server to Expansion enclosure connectivity (Mini-SAS HD x4 to Mini-SAS x4)
00Y2459
0.6m SAS Cable (mSAS HD to mSAS)
1
00Y2461
1.5m SAS Cable (mSAS HD to mSAS)
1
00Y2463
3m SAS Cable (mSAS HD to mSAS)
1
90Y7682
External Expansion Cable - 6M SAS Cable - HD SAS
to Mini SAS
1
Expansion enclosure to Expansion enclosure connectivity (Mini-SAS x4 to Mini-SAS x4)
39R6529
IBM 1 m SAS Cable
1
39R6531
IBM 3 m SAS Cable
1
