I have a QNAP NAS populated with 6 WD4000F9YZ-09N20L0 (4TB WD SE drives).
Two of the drives are being flagged by QNAP as having a smart errors.
ID 197: Current Pending Sector
ID 198: Uncorrectable Sector Count
So I pulled then and use the WD Data Lifeguard Diagnostics for Windows to check the drives out. This utility merrily says the drives are fine?
What the heck? Are the drives bad or good?
I lean towards trusting the QNAP flagging an issue, but it would still be nice to know what is happening.
Any ideas what I should think about this?