You can just swap the drive, it shouldn’t cause any issues.
Hello, We have a T710 PowerEdge server running CentOS 6.9, with 8 SATA, 7200 rpm, 2.5 inch, 500 gig drives. One of the drives is indicating a failure. In the documentation I've been able to find, it looks like the failing drive needs to be marked for removal first, then removed, then replaced with the new drive. We have the new drive, but how do you mark the old drive for removal without having to power down the server and go into the RAID bios? We want to avoid downtime as much as possible. In a previous lifetime, I worked with PE servers running Windows, and Dell had a nice GUI application where this could have been done - does such an application exist for Linux? If I were to just yank the old drive and stick in the new drive without this "mark for removal" step, is that going to hose something in the RAID?
Replacing a hot swap drive