Intel RAID Performance 12Gb/s SAS RAID Controllers

Intel®RAIDPerformance12Gb/sSASRAIDControllersWhitePaper
2 Performance Tests and Results
 UsingIOMeter1.1,anopen-sourceI/Oworkloadgenerator,InteldesignedI/Oworkloadprolesto
demonstrate how real-world applications might perform. Sequential read and write benchmarks reveal
how well streaming applications perform. Real-world benchmarks simulate multiple enterprise workloads
 thattypicallyincludemixedandoverlappingreadsandwritesacrossrequestsizes,suchasthereal-world
applications in the following table.
Table 1 Real-World Applications
2.1 Intensive Streaming Applications
 TheIntel12Gb/sSASRAIDcontrollersimplementeightlanesofPCIe3.0(8GT/s)thatprovide8,000
 MBpsofunidirectionalbandwidth,whileeightphysofthirdgenerationSASproduces9,600MBpsofSAS
bandwidth.
 Streamingapplicationsfocusoneciency,storagecapacity,andthroughput.Asthefollowinggure 
 shows,allRAIDtypesprovidesimilarhighreadperformanceofnearly6,000MBps.Whenyourequire 
 highlyavailableandprotecteddata,thereisapenaltyinwriteperformancetoeitherprovidemirrored
 writes(RAID1/10)ortocomputeandstoreparity(RAID5/6).Intermsofmeantimetodataloss(MTTDL),
 RAID0scoresthelowestfollowedbyRAID5,RAID10,andRAID6.
Workload Typical Applications
Streaming reads Onlineanalyticalprocessing(OLAP),datawarehousing,extract-transform-load(ETL),virtualtape
library
Streaming writes Videosurveillance,medicalimaging,archival,backup
Workstation Scienticandoceapplication
Web server Web serving applications
OS drive Operating systems
File server Structuredlesystems
Email server Serveraccept,deliver,storeandforwardapplications
Enterprise databases Onlinetransactionprocessing(OLTP),OLAPtransactions,emailapplications
Multithreaded reads Videoondemand,Hadoop®Framework,HadoopDistributedFileSystem(HDFS™),cloudcontent
Multithreaded writes Hadoopsourceingest(ApacheSqoop™orFlume™)
Analytics SQL,NewSQLandNoSQLdatabases,MapReduce