Yes, ou can change the IPs on the controllers without affecting data on the system.
The following document has steps: HPE MSA 2050 User Guide
If you wish to check your firmware on your system you can now do so easily by checking this link: www.hpe.com/storage/msafirmware
Also, to check the overall health of your system and any available firmware versions you can use our new MSA Health Check Tool at the following link: www.hpe.com/storage/MSAHealthCheck
Download your MSA Log File from your MSA array
Upload the MSA Log File into the MSA Health Check website
Review the results by clicking through the tabs and saving the PDF report
Links to array, enclosure, and drive firmware are provided for easy access
I work for Hewlett Packard Enterprise. The comments in this post are my own and do not represent an official reply from HPE. No warranty or guarantees of any kind are expressed in my reply.
Cheers,
Shawn