RAID Level Migration and Online Capacity Expansion are designed to be done ONLINE and are NOT data-destructive. This is the case with PERC 3/4/5/6, and H7x00 controllers. Applies to lower-end H-series controllers as well, but they don't really count for anything.
I know this is NOT the recommended way. R610 with PERC 6i. OMSA is installed on VD0. Due to circumstances beyond my control, i NEED to get this server up and runnng!!! I have VD0 configured and ready with the OS installed. The problem is, all the drives for VD1 have not arrived....... I have 2 of them and a 300GB sas drive. If i use the 3 that i do have, 2x 240GB SSD's and the 1 300GB sas drive, this will make it possible to configure RAID 5. When the 2 other 240GB SSD's arrive, i can remove the 300GB sas and insert the 240GB SSD. After the rebuild, i can then insert the last 240GB and use OMSA to "extend" the RAID 5 in space. This will work, yes? I know it is not the recommended way but this is holding the rest of the project up and the heat is on me.....
Create RAID with 2 Different Size Disks