It has been speculated that manufactures started using SMR drives because they are cheaper to make.
Oh I have no doubt about that.
Here are my external hard disk drives. I used CrystalDiskInfo to determine what the internal hard drive models were.
1. WDC 6TB My Book: Internal = WD60EZRZ-00RWYB1
2. WDC 6TB My Book: Internal = WD60EDAZ-11U78B0
3. WDC 12TB Elements: Internal = WD120EMFZ-11A6JA0
4. WDC 20TB Easystore: Internal = WD200EDGZ-11B9PA0
5. Seagate 1TB Expansion+: Internal = ST1000LM024 HN-M101MBB
6. Seagate 2TB Expansion: Internal = ST2000DM001-1CH164
7. Seagate 5TB Expansion: Internal = ST5000DM000-1FK178
Note all drives are 3.5" except #5 which is 2.5".
I dunno, would something like Hard Disk Sentinel tell you something about those?
Hard Disk Sentinel - HDD health and temperature monitoring
Monitoring hard disk health and temperature. Test and repair HDD problems, predict disk failure.
I know there are a lot of detailed settings in there so if you decide to try it, you'll have to dig deep in there to see if that info is there.
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My Computers
-
At a glance
Windows 11 Pro 25H2 build: (26200.7623)32GB- OS
- Windows 11 Pro 25H2 build: (26200.7623)
- Computer type
- Laptop
- Manufacturer/Model
- Microsoft Surface Pro
- Memory
- 32GB
-
At a glance
Microsoft 25H2 ProIntel Core Ultra 764GBIntel Integrated Graphics- Operating System
- Microsoft 25H2 Pro
- Computer type
- Laptop
- Manufacturer/Model
- Dell Pro 14 - PC14250
- CPU
- Intel Core Ultra 7
- Memory
- 64GB
- Graphics card(s)
- Intel Integrated Graphics
- Hard Drives
- Micron 1TB SSD






