Bests & Worsts Reviews from Amazon

I purchased this WD RED 6TB NAS drive to expand my Drobo 5D which was running low on space. The 6TB RED drive is one listed by Drobo as being compatible with the 5D - which is running four 3TB RED drives. It has been a nightmare. Western Digital has secretly changed the design of their RED NAS drives, causing compatibility issues with existing systems. This is NOT an NAS drive. Shame on WD for its deception. There are many users like me who found themselves in the same positon. After a lot of troubleshooting and research, I learned that WD wouldn't even admit to the RED drives using SMR until very recently. They still don't label them as such on Amazon. My raid was running fine before adding this drive. Now it's in a critical state, inaccessible, and I have open support tickets with both WD and DROBO. There should be a class-action lawsuit brought against WD for its deception and recklessness with their user's trust, time, and data.