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

StephenB wrote:

... However, in your case the drive has all of a sudden generated a burst of errors - so firmware driver issues are not the cause. It might be ok, but it needs more investigation. Most drive failures also result in other errors (CRC errors on the interface, reallocated or pending sectors, etc). Though I did have one drive that started generating ATA errors with no other bad stats. I ended up replacing it.

In this case, was it increasing ATA errors or one big burst like what I saw on mine (0 to 12 during the volume expansion due to adding the two new 3TB disks)

StephenB wrote:
...Anyway, after you post the stats I will either followup with a suggestion to do another scrub, or a suggestion to replace the drive - depending on what I see.

Thanks. I just posted the SMART+ results from my NAS

StephenB wrote:
.You should certainly have an up-to-date backup. Even if you don't have enough backup space, you should back up critical files right away.

Yes, backup is up-to-date (I think). So far, I back up to a 2TB ext drive using rsync, and I have not yet cross 2TB of data, yet. Closing in maybe within 6 months, just guessing.

StephenB wrote:

.FYI a disk scrub on the 4.2.x firmware reads every sector of the data volume, and verifies that the RAID parity blocks are all correct. So it ensures that the data volume has full integrity, and as a side benefit acts as a drive diagnostic of sorts. I run them regularly every 16 weeks, others here run them more frequently. However, if the data volume is already known to be at risk, then you probably shouldn't run one.

IF during the scrub, data volume integrity issue is found, what does the NAS software do? Since I am running dual redundancy, does this factor in what the NAS does to remedy a data volume issue?

Thanks for assistance.