I have a FAS2554 that I need to convert to a disk shelf that had Clustered ONTAP 8.2.2 on it, it is now 8.2.2 7-Mode. The target system is a FAS3220A with 8.0.5 7-Mode on. I have no requirement to preserve data on the FAS2554 but only to use it for swing space for a migration from the FAS3220. I have a few questions:
Is there any issue with adding the converted shelf to the FAS3220 live?
Is there any issue with ONTAP versions not matching?
Should I be concerned that the target FAS3220 will have 4 root volumes on it for a very brief time frame (before I get in and remove them)?