Interpreting SMART results

Hi everyone, I’m sorry for my bad english. I have a 1 years old WD20EZRZ which in many places on the disk slows down a lot until it stops and blocks windows explorer. When writing at these points, the value of the writing errors increases a lot, and also the reallocated sectors. Is the disc about to break? Can it go under warranty? The test with Data Lifeguard freezes for slowness and would last many days if I waited for the end. Thanks in advance.
wd

Got it the result.