What part are you doing wrong?I’ve been doing it wrong since 2012
I put two drives in every one of my NVR/DVRs and those of friends I’ve helped. Over the years I’d guess 25-30 NVRs .I always use WD purple drives.
I’ve had one drive fail in that time, one of my own 2TB drives from 2014 in an old Hybrid DVR. It failed about 2 months ago.
I got an alert from the DVR and otherwise life went on. It’s now recording to one drive and I get less days of storage.
yawn...