IBM System x3950 X6 Product Manual

Also see for System x3950 X6: Installation and service guide Product guide Planning and implementation guide Installation instructions

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IBM System x3950 X6 37External disk storage expansionThe server supports attachment to external storage expansion enclosures, such as the EXP2500 series,by using the ServeRAID M5120 SAS/SATA Controller. The server can also be attached to supportedexternal storage systems, such as the IBM System Storage® DS3500 series, by using a supported HBA(see the earlier "Storage HBA" section). The following table shows the RAID controllers and options forexternal disk storage expansion.Table 22. RAID controllers and options for external disk storage expansionPart number FeaturecodeDescription Maximumsupportedx3950 X6Standard modelswhere used00AE938 A5ND ServeRAID M5225-2GB SAS/SATA Controller -81Y4478 A1WX ServeRAID M5120 SAS/SATA Controller 5 -Features on Demand upgrades for the M522547C8706 A3Z5 ServeRAID M5200 Series RAID 6 Upgrade for IBMSystems-FoD147C8710 A3Z7 ServeRAID M5200 Series Performance Accelerator forIBM Systems-FoD147C8712 A3Z8 ServeRAID M5200 Series SSD Caching Enabler forIBM Systems-FoD1Hardware upgrades for the M512081Y4487 A1J4 ServeRAID M5100 Series 512MB Flash/RAID 5Upgrade1 -81Y4559 A1WY ServeRAID M5100 Series 1GB Flash/RAID 5 Upgrade 1 -Feature on Demand upgrades for the M512090Y4318 A2MD ServeRAID M5100 Series SSD Caching Enabler 1* -90Y4273 A2MC ServeRAID M5100 Series SSD Performance Key 1* -81Y4546 A1X3 ServeRAID M5100 Series RAID 6 Upgrade 1* -* These M5120 features upgrades require a cache memory upgrade (81Y4487 or 81Y4559).The ServeRAID M5225 SAS/SATA Controller has the following specifications:Eight external 12 Gbps SAS/SATA portsSupports 12, 6, and 3 Gbps SAS and 6 and 3 Gbps SATA data transfer ratesTwo external x4 mini-SAS HD connectors (SFF-8644)Supports 2 GB flash-backed cache (standard)Supports RAID levels 0, 1, 5, 10, and 50 (standard)Supports RAID 6 and 60 with the optional M5200 Series RAID 6 UpgradeSupports optional M5200 Series Performance Accelerator and SSD Caching upgradesPCIe x8 Gen 3 host interfaceBased on the LSI SAS3108 12 Gbps ROC controllerSupports connectivity to the EXP2512 and EXP2524 storage expansion enclosures