“Western Digital has been receiving a storm of bad press—and even lawsuits—concerning their attempt to sneak SMR disk technology into their “Red” line of NAS disks.”
Western Digital Officially States Which Specific HDD Models Use SMR Technology
“Western Digital has released a statement that states which drives make use of the SMR ( or shingled magnetic recording), which is slower when compared to its newer CMR technology. The company announced that the drives that use SMR technology range from WD Red HDD to WD Black HDDs.”