How to know if G-list is full? I have 1 pending sector (from smart attributes) that won't move into the G-list to become 0 pending sector, I ran mhdd with remap already, but only got 2 "? TIME" sectors (ie: Timeout)... and not UNC

Why doesn't the 1 pending sector in the smart attribute get moved out ?

thanks

Pending sector doesn't mean G-list is full. It rather means that firmware have a problem relocating sector (one or even more?).
From the user side it can be rectified by rewriting bad area, forcing relocation. If doesn't help, this is indication for more severe problems with device.
Use MHDD 2xF4 and see if you have delays or errors. Then use erase delays and see if delays are gone and attribute is cleared.

don't worry, yours hard drive can live long time with 1 pending sector, if you wont clean smart attributes, you need prof. programs, for that question