Bad Sectors On Two Drives: Unlucky?

[MarkeR]

4 bay hp micro gen 8 server running xpenology just for Plex and Emby.
Populated by a 250gig drive and the other 3 bays with 3 2TB drives for storage, no raid setup as the data isnt that important.
Had some bad sectors which caused a volume to crash, so I copied the data over onto another drive with the intention of buyoing a new drive then recopying the data back.
Woke up this morning to find that another drive has failed, the one which the data was being copied to. Unlucky coincidence or something else do you think? File sizes were between 4gig and 10 gig. Transfer rate was good at the time.

Thanks

 

[MarkeR]

So probably just blastng the drive with that amount of data killed it?
The data that was stored isn't important, can always get it again, no need for raid and doubling my costs.
If I needed 6TB of cloud storage where would you recommend I get that from?
thanks