If it's only a sector that died on you in one disk the likelyhood that the equivalent sector in the RAID stripe also failed is fairly small[1].
The most often cited issues is with a full disk failure and then having a sector already dead in another disk that you weren't aware of. Do disk scrubs and you will mostly avoid this risk. Your array (software or hardware) should be capable of disk scrubs, most if not all are capable and will do it.
[1] There is a failure mode whereby frequent writes to one sector/track will cause damage to nearby sectors in which case if your RAID stripes are static you may have multiple sector failures in multiple disks in the same stripe. It does require hundreds or thousands of rewrites for all I know so your workload needs to be extreme to reach that case.
The most often cited issues is with a full disk failure and then having a sector already dead in another disk that you weren't aware of. Do disk scrubs and you will mostly avoid this risk. Your array (software or hardware) should be capable of disk scrubs, most if not all are capable and will do it.
[1] There is a failure mode whereby frequent writes to one sector/track will cause damage to nearby sectors in which case if your RAID stripes are static you may have multiple sector failures in multiple disks in the same stripe. It does require hundreds or thousands of rewrites for all I know so your workload needs to be extreme to reach that case.