Okay thanks. I guess I'm surprised it's not got a clear replacement, but maybe the built-in tools are robust enough that a separate tool isn't needed anymore.
@paul_stejskal , I was simply rebuilding our NetApp management server. Our previous one had lots of NetApp tools including perfstat. I was originally going to install the updated version on the new server but saw the note about it being discontinued, and wanted to see if there was a new one to install.