If this is just a random error you are unconcerned by (recent power outage, flakely cables, etc), you can clear the errors. If you believe the drive is failing, you can replace the drive. The array will remain in a degraded state until you make a decision.
The error message tells you what to.
If this is just a random error you are unconcerned by (recent power outage, flakely cables, etc), you can clear the errors. If you believe the drive is failing, you can replace the drive. The array will remain in a degraded state until you make a decision.