[GTALUG] warning: some WD NAS drives are shingled!

[D. Hugh Redelmeier]

Shingled drives are NOT suitable for RAID.
NAS drives are marketed as designed for NAS, and thus for RAID.
WD has started to ship some shingled drives with NAS labels.
They didn't admit it for almost a year.

<https://blocksandfiles.com/2020/04/14/wd-red-nas-drives-shingled-magnetic-recording/>
<https://nascompares.com/2020/04/16/your-wd-red-nas-hard-drives-might-be-using-smr-what-you-need-to-know/>

Shingling is a useful technique for increasing disk density.  But it
has performance implications.  They are horrible for RAID.  In fact
they can cause RAIDs to fail.

I'm currently not affected but if I were I'd search for a class-action 
suit to join.