INFO: WD confirmed SMR on all WD-REDs from 2-6TB...

[Zonediver]

Statement from WD:

 

All our WD Red drives are designed meet or exceed the performance requirements and specifications for common small business/home NAS workloads. We work closely with major NAS providers to ensure WD Red HDDs (and SSDs) at all capacities have broad compatibility with host systems.

Currently, Western Digital’s WD Red 2TB-6TB drives are device-managed SMR (DMSMR). WD Red 8TB-14TB are CMR-based.

 

https://www.computerbase.de/2020-04/wd-red-festplatten-smr-ohne-kennzeichnung/

 

What the hell... 😡

Edited April 15, 2020 by Zonediver

[JorgeB]

That's known for a few months:

 

https://forums.unraid.net/topic/82873-wb-my-book-6tb-smr/?do=findComment&comment=768681

 

[JorgeB]

Note the the 4TB model is not SMR, at least the current model WD40EFRX.

[Zonediver]

1 minute ago, johnnie.black said:

Note the the 4TB model is not SMR, at least the current model WD40EFRX.

Is this for sure?

My newest 4TB WD-RED (6 months old) is doing weird things...

[JorgeB]

If it's an EFRX yes, if/when they release a WD40EFAX with 256MB cache it will likely be SMR.

 

 

[Zonediver]

27 minutes ago, johnnie.black said:

If it's an EFRX yes, if/when they release a WD40EFAX with 256MB cache it will likely be SMR.

 

It is an EFRX with 64MB cache but the disk behaves really strange. When it goes to sleep, it makes a scratchy sound. Then suddenly I got artifacts in movies and TV series and yesterday I had stutter and sound interruptions.

But the SMART values look good... maybe a "mechanical defect"...

[JorgeB]

Possibly, also WD SMR disks don't make any strange sounds.