1 currently unreadable (pending) sector

[jdratlif]

smartd tells me I have 1 currently unreadable (pending) sector.

It's on a single drive (/dev/ada1). After reading some posts on this forum, it was suggested I do a long self test to see where the error was. I ran the long self test and it completed without error, but this pending sector is still there.

How can I identify it? Is this a problem?

Suggestions on how I should proceed?

Thanks,

 

[warri]

If there are no other signs of failure, you can just keep the disk running. With increasing age, it's normal for HDDs to reallocate sectors.
But it also might be a sign for a drive slowly dying. I suggest that you keep an eye on the disk (SMART attributes/errors, ZFS scrubs) and exchange it if it gets worse - especially if the pending and offline sectors counts increase a lot.