theflash1932
5 Iridium

Re: confused. PERC5+SATA, no interposer

Not only do SAS drive typically have a higher RPM (10K/15K vs typical SATA 7.2K), but SAS has many other features that make them faster than SATA (full duplex, caching, performance settings, etc.):

www.intel.com/.../CS-031831.htm

blog.whitesites.com/SAS-RAID-0-VS-SCSI-RAID-0-VS-SATA-Benchmarks__633689244191943184_blog.htm

ftp://ftp.compaq.com/pub/products/servers/proliantstorage/drives-enclosures/sata-vs-sas.pdf

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