Dell PowerEdge R420 Technical Manual

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Dell PowerEdge R420 Technical Manual Manual pdf 22 page image

22 PowerEdge R420 Technical GuideExternal storageExternal storage for the R420 is available through optional HBAs for SAS and iSCSI. For moreinformation, see Dell.com/Storage.Storage controllersDell provides highly capable RAID options for you to ensure that your data remains safe. Dell’s RAIDcontroller options offer impressive performance improvements, including the following features:• FastPath™ I/O: This feature can help accelerate performance when operating on SSDs.• Split mirror: This function allows you to break mirrored disk connection in order to quicklyreplace a drive.• Physical disk power management (Dimmer Switch™): This feature allows for power control ofspare or idle drives, which can save energy and operating expenses.Supported RAID controllersThe newest line of PERC (PowerEdge RAID Controller) cards offer high I/O performance fordatabase applications and streaming digital media environments. The internal RAID controllers havea dedicated connection to the system board. The R420 supports the new PERC 8 family ofcontrollers with improved functionality and faster performance.The default PERC for the R420 is a mini- type PERC. The R420 also supports the new software RAIDsolution that supports RAID 0, 1, 5 and 10. The R420 supports the PERC cards listed in Table 12. Formore information about the latest PERC offerings, see Dell.com/PERC.Table 12. Supported RAID controllersController Description FeaturesRAIDmodessupportedForm factor UsagemodelPERC H810ExternalEight- port, external and6Gp/s PCIe RAIDcontrollerIncludes 1GB NV DDR3cache, premiumperformance and featureset, security SED/EKMS,and SSD as cache0, 1, 10, 5,50, 6, 60 Adapter PremiumperformancePERC H710PInternalEight- port, internal 6Gb/sPCIe RAID controllerIncludes 1GB NV DDR3cache, premiumperformance and featureset, security SED/EKMS,and SSD as cache0, 1, 10, 5,50, 6, 60Integratedmini- typePremiumperformancePERC H710InternalEight- port, internal 6Gb/sPCIe RAID controllerIncludes 512MB NVDDR3 cache, advancedfeature set, securitySED/EKMS0, 1, 10, 5,50, 6, 60Integratedmini- type PerformancePERC H310InternalEight- port, internal 6Gb/sPCIe RAIDSupports hot- plugdrives, expansion, pass-through0, 1, 10, 5,50Integratedmini- type Value