I have a question I believe I already know the answer to but was hoping that I could get a few other opinions on the matter. We are currently looking to fill up the rest of our SAN enclosure and I was looking to possibly go with larger hard drives this time around. We currently have an enclosure half full of 300GB drives which was divided into multiple disk pools setup in RAID 5. My question is, would it be possible to add 450GB hard drives to fill up the rest of the enclosure and be able to expand an existing RAID 5 Disk Pool or would a new Disk Pool have to be created due to the fact that the hard drives are of a different size. I know with a desktop or workstation this would be the case but I was unsure if this was something that perhaps the SAN would be able to get around. Any feedback or input would be appreciated.
EMC Clariion AX4-5