Shingled HDD's and existing RAID arrays = disaster

[The_Librarian]

Hey Guys

Found these two informative articles, and thought to share them, just to prevent you from the ballache of lost data...

Shingled hard drives have non-shingled zones for caching writes

The revelation that some WD Red NAS drives are shipped with DM-SMR (Drive-Managed Shingled Magnetic Recording) prompted us to ask more detailed questions to the Blocks & Files reader who alerted us to the issue. Alan Brown, a British university network manager, has a high degree of SMR smarts...

blocksandfiles.com

Western Digital admits 2TB-6TB WD Red NAS drives use shingled magnetic recording

Some users are experiencing problems adding the latest WD Red NAS drives to RAID arrays and suspect it is because they are actually shingled magnetic recording drives submarined into the channel. Alan Brown, a network manager at UCL Mullard Space Science Laboratory, the UK’s largest...

blocksandfiles.com

 

[PsyWulf]

****er of mothers,explains the multitude of slowdowns i've had with rebuilds

I know datahoarder subreddit has been buzzing about this for a while,good they are vindicated now