Anti-shock is another matter, depending on how the drive is made.My understanding is that the SSD in the main drive position is the way to go. The question is about a HD drive in the optical bay. I know many have put their HD in the optical bay, but the main drive bay has anti-shock (how Apple has this working I don't know) and the optical bay does not. How does this effect the HD in the optical bay? Is it something to be cautious about in use? Does the provided Apple 750gb HD (late 2011) have anti-shock (as some drive do) built in so I don't need to worry?
Thanks
I know for certain that some HD drives have sudden motion sensors built in and some don't, models that do often have an "S" in the model name (Seagate xxxS for example). These drive will park the heads on detecting sudden motion to prevent damage to the drive. I don't know about the 750GB drive that came with your MBP, and Apple has a habit of using several different sources for HDs, so check your system profiler (Apple Menu/About this Mac/More Info/System Report/Serial-ATA) for info on the drive installed.
There is a terminal command to disable SMS, so the system must have it built in too;
Disable Sudden Motion Sensor in the terminal using the following command:
sudo pmset -a sms 0
Again, I don't know how this works or even if it does when the HD drive is in the optical drive bay. Maybe someone who does know can pinch hit here?