Ready for expansion (RN Pro Pioneer Edition)-Seeking Advice

StephenB wrote:

Reported Uncorrect 12 ATA Error Count 12 These are the two concerning stats, and it is interesting that they match. It's difficult to get much real information on exactly what is being Reported as Uncorrect btw. If this were a newly purchased disk and if you were still in the return window I'd have suggested exchanging it. But that's not the case. Personally I wouldn't replace it yet, instead I would follow up with another scrub.

I am a little unclear what the options on the NAS are.

Under Volumes|Volume Settings|Volume Maintenance tab, I see:
Disk Scrubbing with Auto Parity Fix
and
Online File System Consistency Check
both of which have schedules to run every X weeks at T time

1. Should I run both?
2. Can I force either one to run right now as opposed to on a schedule?

3. What is the relation between the above two functions and the following two options I see under the following:
System|Shutdown|
Perform volume scan on next boot. This process can take several minutes to more than an hour depending on disk capacity and volume content.
and
Check and fix quotas on next boot. This process can take several minutes to more than an hour depending on disk capacity and the number of files on your volume.

4. Should I be running either one of these also?