Please help this is bugging the hell out of me. Its a toshiba hard drive.. I know I have backed up everything but i dont have the money right now to buy a new drive so i need help disabling it. THANKS.
The only way I know of is to disable it via the BIOS. Have you tried calling Sony? If I remember correctly, Sony computers come with Utility software installed within Windows which has some options that would normally be configurable via the BIOS. If your computer doesn't have that utility software currently installed, try installing the software off of the Applications and Utilities CD that shipped w/ your lappy.
I'd like to add that disabling SMART is not recommended. SMART monitors your Hard drive for any impending failures and alerts you in advance if it detects anything abnormal with the drive. I strongly recommend you keep SMART enabled.
Using smartmontools is easy to disable SMART, but the change unfortunately it's not permanent. Infact when you reboot the computer, the HDD's firmware make a check and it ri-enables automatically the SMART. So, only with smartmontools, i can't solve my problem :-(