Before using the "Western Digital Elements 2TB USB 2.0 Desktop External Hard Drive"

I have 3 questions.

Just purchased the Western Digital Elements 2TB USB 2.0 Desktop External Hard Drive.

After reading all the information on the internet, it seems like it is usually a 4K sector size Advanced Format drive.

It says "p/n:WDBAAU0020HBK-01" on the enclosure; HD Tune, SIW etc say "WDC WD20EARS-00MVWB0", firmware "51.0AB51"

The HDD also gives the following information:

Number Of Disks : 4
Number Of Heads : 8
Rotational Speed : IntelliPower
Bytes Per Sector : 512

Multiple Sectors : 16

I am confused regarding:

1. the number of discs being 4 as I read it being a 3x666GB HDD.




2. "Bytes Per Sector" being reported as 512

   
   
   

   Hence, is this drive a 4K sector size Advanced Format drive?

   
   
   
   

   Is there a dependable way of checking so?




3. I see that there are lots of reports about this specific drive "WD20EARS-00MVWB0" failing.

Is there a dependable way of checking if the drive will fail in the next 2/3 months?

I have enough free sapce on other drives and do not need to use this drive right away - instead I am willing to stress test the drive if it would help me get meaningful details about the drive's reliability and life.