Thanks Steve,

Actually we already have a 4 node RAC cluster implemented for over a year now. We are writing the archive logs to 1 device. But what we have noticed recently is that each of the nodes may do a log switch at the same time, and they may all write 500M to the archive file (that is on 1 device) at the same time.

So, if we can have a dedicated device for each instance, then that should make the archieving faster; without waiting for the device to free up.