[CentOS] Drive failed in 4-drive md RAID 10

Fri Sep 18 20:33:10 UTC 2020
Jon Pruente <jpruente at riskanalytics.com>

On Fri, Sep 18, 2020 at 3:20 PM Kenneth Porter <shiva at sewingwitch.com>

> Thanks. That reminds me: If I need to replace it, is there some easy way
> to
> figure out which drive bay is sdf? It's an old Supermicro rack chassis
> with
> 6 drive bays. Perhaps a way to blink the drive light?

It's easy enough with dd. Be sure it's the drive you want to find then put
dd if=/dev/sdf of=/dev/null into a shell, but don't run it. Look at the
drives and hit enter and watch for which one lights up. Then ^c while
watching to be sure the light turns off exactly when you hit it.