I have a desktop at home with both SAS and SATA ports. (The SAS ports are supplied by a 3ware 9750 card). Currently I have 5 SATA drives connected to these. One small SSD to boot from and four larger drives to hold data.
I now want to add a SAS drive. As far as I know this should just work. However there is a lot of advice not to mix SAS and SATA on the same controllers. I understand that adding a SATA device to a previously pure SAS environment is a bad idea. But I can't find reliable information on the reverse.
Question: Is there any reason not to add a SAS drive to a SAS bus previously containing only SATA drives?