How to replace only one drive in RAID1

It has been years since I did this and haven't done it enough times to remember how (for sure).

I have one failed disk in a RAID1. The controller is an Adaptec 1210SA. The current array has exactly matching drives. Best I can remember, I can replace the failed disk with one that is similar as long as the size is the same or larger and then when I turn on the computer, the raid automatically rebuilds the new drive with duplicate data as is already on the drive that did not fail.

Is this correct?

The drive that is in it now is about 8+ to 10 years old so there isn't much chance of getting a new one the that small or with less cache or lower transfer rate. I think it is about a 160G.