You can start with reading of these blogs in our forum:
User article - Panic around the SMR HDDs. Or just well thought out marketing (from/for whom)? Part No.1 (2)
User article - Panic around the hard drive. Or just well thought out marketing (from/for whom)? Part No. 2
April 28, 2020
Toshiba Electronic Devices & Storage Corporation
The introduction of Shingled Magnetic Recording (SMR) technology has enabled HDD manufacturers, such as Toshiba, to increase the capacity of their spinning platter drives beyond that of existing approaches. SMR technology is...