I am not sure what happened but after simple reboot the P: drive was not there.
At the beginning both disk where showing OK, but with the ERROR on the pool. I did some tests and after that one start showing Warning.
I dont really mind just want to recover the data... I tried EASEUS software to do recover and it did recover but many files are on the FAILURE html report page ! this is damn, as I have some important data on it. I am now trying ReclaiMe .. (EDIT: THIS WORKED AND RECOVERED ALL MY DATA)
Isn't there a simple way to recover the data ? what is the use of mirroring 2 disks ... If I will replace the damaged disk, will I get the pool to work ?