what's the most thorough test for a new NAS drive before usi

[Swapjim]

I'm setting up a 2 drive NAS. I got a WD Red and Seagate IronWolf, both 4TB. Want to do a thorough test before putting them into the NAS.

From what I see, the DOS tools of both companies (Data Lifeguard Diagnostic for DOS for WD and SeaTools Bootable for Seagate) do the most thorough test on the drives. So I need to do the extended tests with these two tools. Is that correct?

[fzabkar]

Neither of those tools are suitable for anything other than qualifying your drive for an RMA.

I would use HDDScan to perform a full surface scan. This will identify any "weak" sectors, ie those that require read retries. Then examine the SMART report. Look for reallocated, pending or uncorrectable sectors. Seagate also has a Command Timeout attribute.