Should Disk sdb replaced or not?

[Novell1]

Hello everyone, sometimes I get an “ALERT” by email that a disk is having problems.new alerts:

• Device: /dev/sdb [SAT], 2143 Offline uncorrectable sectors.
  Current alerts:
• Device: /dev/sdb [SAT], 85 Currently unreadable (pending) sectors.
• Device: /dev/sdb [SAT], 2143 Offline uncorrectable sectors.
  But in the TN Scale GUI 25.04.1 - Storage Dashboard there are no errors !
  Is this an “error” that you can live with, or does this disk have to be replaced?
  Many thanks for your help!
  Greetings
  Novell1
  
  

[ChrisRJ]

Especially since you only have RAIDZ1, make a backup immediately and get a replacement. Even with a new disk, given the high risk of its “infant death”, stay vigilant.

All this assuming that your data is important to you.

For more, please use the search function. This has been discussed countless times,

[etorix]

Follow the chart if you want the details:

Drive Troubleshooting Flowchart

Do You Think You Have A Drive Issue? Use the flowcharts here to help you diagnose your problem. You will have a definitive answer much sooner than asking for help and waiting on a reply, followed by asking questions for more data, running tests, etc. Save yourself some time and learn a little bit in the process of using these flowcharts. These are very simple to follow flowcharts to diagnose drive problems/failures. There is a small bit about ZFS problems as many people will say it must be …

But the short answer is that the drive that was /dev/sdb when the alerts arised is not healthy.