I just got a QNAP TS-251, an NAS that runs Linux plus the manufacturer's tools. One of the setup options is to run a bad block scan, but on a pair of 4 TB drives that might take a really long time to run, during which I can't start to use my new NAS.
So, is there a utility that I can run in the background once the device is fully functional? Obviously such a utility would take even longer than one that's running on new, empty drives, since it has to do its thing without destroying live data. But meanwhile the machine is functional and available.
Such a utility might also be useful as a periodic preventive maintenance tool, a few times a year, not just as a way to bring a new device into service sooner.
- Does such a utility exist for Linux in general?
- If so, does it run on a QNAP NAS?
- Or is there a QNAP specific utility for this purpose?