These guys are corrupt just like the HDD that they stuck in the MCH. It is quite likely that if WDC had use a conventional magnetic recording (CMR) instead of a SMR (Shingled MR), the drive would not have failed under OS and NAS read and write condition in such a short time as in your case. This is why WDC settled a law suit and agreed compensation for those who bought a NAS (or alike) device having WD SMR drives.
You should read the kernel log from the debug_logs.zip and search for ‘ata-1’ and document a picture of what HDD you have in your MCH from the log. This way you can also make a claim against WDC for putting such a crappy drive in the MCH. You won’t get much money, but you may feel better. See this thread here:
