IBM x3690 X5 Product Manual

Also see for System x3690 X5: Implementation guide Installation and user guide At-a-glance reference guide At-a-glance guide Manual

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IBM System x3690 X5 28The RAID controllers listed in the following table are supported with external expansion enclosures.Table 21. RAID controllers for external storage expansion enclosuresPart number FeaturecodeDescription Maximum quantitysupported46M0830 0094 ServeRAID M5025 SAS/SATA Controller 446M0930 5106 ServeRAID M5000 Series Advance Feature Key† 1 per one M502581Y4426 A10C ServeRAID M5000 Series Performance Accelerator Key† 1 per one M5025† Only one key is supported in each controller, either the Advance Feature Key or the Performance Accelerator Key.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 theServeRAID M5025 SAS/SATA Controller for IBM System x Product Guide:http://www.redbooks.ibm.com/abstracts/tips0739.html?OpenThe external SAS cables listed in the following table are supported with external expansion enclosuresand M5025 RAID controllers.Table 22. External SAS cables for external storage expansion enclosuresPart number Description Maximum quantitysupported per enclosure*39R6531 IBM 3 m SAS Cable 139R6529 IBM 1 m SAS Cable 12018 IBM 11U Office Enablement Kit 1* Note: The EXP3000 and EXP2500 series can be chained with each other. In such a case, one cable is used toconnect first EXP25xx or EXP3000 to the RAID controller, and every consecutive EXP unit is connected to previousone by one cable.