>>1492887That's how pending sectors work.
Setting a sector as pending means it has been detected as unstable.
Pending means waiting for transfer to a spare sector, this would then become a Reallocated Sector and the count would increase.
Before doing that it is checked agains though.
If it then behaves stable again (can be successfully read and be written to the remapping is canceled and the Pending flag removed.
Getting Pending sectors is a warning sign, even if they stabilize again, i CAN fail but doesn't HAVE to. According to Google studies after such an error there is a period of roughy 1 month where the danger of failure is biggest, if it survives that period the likeliness of failure sinks down again and they could contiunue to work for years.
If your data is important you should get a backup disk and mirror everything over, then you can continue using it as a disk for less important data.
