u/Significant_Elk8997

Hi All,

We are planning to upgrade the following NetApp storage systems 9.13.1 to ONTAP 9.18.1 in a Cisco MDS FC SAN environment:

• NetApp FAS2720
• NetApp AFF A220
• NetApp AFF C250

Environment includes VMware ESXi hosts(Cisco UCS Blade servers) connected through Cisco MDS switches.

Looking for community feedback on:

• interoperability concerns?
• Best practices before upgrade?

Appreciate anyone can provide experience or recommendations.