IBM System x3200 M3 29
The RAID controllers listed in the following table are supported with external expansion enclosures.
Table 17. RAID controllers for external storage expansion enclosures
Part
number
Description Maximum quantity
supported
46M0830 ServeRAID M5025 SAS/SATA Controller 1
46M0930 ServeRAID M5000 Series Advance Feature Key* 1 per one M5025
81Y4426 ServeRAID M5000 Series Performance Accelerator Key* 1 per one M5025
* Note: The Advanced Feature Key and Performance Accelerator Key cannot be used at the same time. Only one
key can be installed onto a RAID controller.
The ServeRAID M5025 SAS/SATA Controller has the following specifications:
Two Mini-SAS external connectors
Supports RAID levels 0, 1, 5, 10, and 50
Supports RAID 6 and 60 with the optional M5000 Advanced Feature Key
Performance optimization for SSD drives with optional M5000 Series Performance Accelerator Key
6 Gbps throughput per port
PCI Express 2.0 x8 host interface
Based on the LSI SAS2108 6 Gbps ROC controller
512 MB of onboard cache
Intelligent Li-Ion-based battery backup unit with up to 48 hours of data retention
Supports connectivity to the EXP3000, EXP2512, and EXP2524 storage expansion enclosures
For more information, see the
ServeRAID M5025 SAS/SATA Controller for IBM System x
at-a-glance
guide: http://www.redbooks.ibm.com/abstracts/tips0739.html?Open
The external SAS cables listed in the following table are supported with external expansion enclosures
and M5025 RAID controllers.
Table 18. External SAS cables for external storage expansion enclosures
Part
number
Description Maximum quantity supported per
enclosure*
39R6531 IBM 3 m SAS Cable 1
39R6529 IBM 1 m SAS Cable 1
* Note: The EXP3000 enclosures can be chained with each other. In such a case, one cable is used to connect first
EXP3000 to the RAID controller, and every consecutive EXP unit is connected to the previous one by one cable.
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