Thought RAID 5 rebuilds were no big deal until a client's NAS in Reno ate 9 hours of my Saturday
I always told customers a rebuild was safe, but last month one drive in a 4-bay unit failed and the second one dropped 20 minutes into the rebuild, killing the array. Now I check backup status before I even touch a failed disk, and the client's $340 recovery bill is a lesson I won't forget. How do you all set expectations with clients when a "quick swap" turns into a weekend project?