IBM 3630 M4 User's Guide download pdf (Page 36)

IBM System x3630 M4 36

The ServeRAID M5120 SAS/SATA Controller has the following specifications:

Eight external 6 Gbps SAS/SATA ports



Two external x4 mini-SAS connectors (SFF-8088)



Supports RAID levels 0, 1, and 10



Supports RAID levels 5 and 50 with optional M5100 Series RAID 5 upgrades



Supports RAID 6 and 60 with the optional M5100 Series RAID 6 Upgrade



Supports 512 MB battery-backed cache or 512 MB or 1 GB flash-backed cache (cache)



Up to 6 Gbps throughput per port



PCIe 3.0 x8 host interface



Based on the LSI SAS2208 6 Gbps ROC controller



Supports connectivity to the EXP2512 and EXP2524 storage expansion enclosures



For more information, see the IBM Redbooks Product Guide

ServeRAID M5120 SAS/SATA Controller for

IBM System x

at:

http://www.redbooks.ibm.com/abstracts/tips0858.html?Open

The ServeRAID M5120 SAS/SATA Controller supports connectivity to the IBM System Storage external

expansion enclosures listed in the following table. Up to nine expansion enclosures can be daisy chained

per one M5120 external port. For better performance, distribute expansion enclosures evenly across both

M5120 ports.

Table 25. IBM System Storage external expansion enclosures

Part number Description Maximum quantity

supported per one M5120

174712X IBM System Storage EXP2512 Express 18

174724X IBM System Storage EXP2524 Express 9

The external SAS cables listed in the following table support connectivity between external expansion

enclosures and the ServeRAID M5120 SAS/SATA Controller.

Table 26. External SAS cables for external storage expansion enclosures

Part number Description Maximum quantity

supported per one enclosure

39R6531 IBM 3 m SAS Cable 1

39R6529 IBM 1 m SAS Cable 1

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 49 50

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