Hi VInce, this is covered in our best practices guide,  If you go to Powerlink, and search "clariion best practices" and content type "Technical/White papers" it is the first thing that shows up  [URL]  And yuo will find, yuo are advised not to do this as the larger disks will be foreshortened - they will be bound as 300 GB drives in your case. If you are OK with that loss of capacity, no problem, go ahead as there are no other operational concerns.
Hi all,  I've got a question what are the risks and recommandation of EMC in using disk of different size on a Clarion CX3-20f when creating a raid group ?  Because actually I've got a raid 5 of 10 disks (+1 spare disk) of 300gb (fiber channel 4gb) and on this enclosure I also have 4 disks of 450gb (fiber channel 4gb).  I'd like to create a raid 5 of all of these disk, is this possible ? If yes, what are the risks, recommandation (advices) of EMC  Thanks
Question about raid with disk of different size on Clarion CX3-20f