2 or 3 volumes with MSA 2050 and ESXi 6.7

Hi,

I plan to create 3 volumes on MSA 2050 SAN controller with ESXi 6.7. Jsut have only one disk group. One volume is for OS image, the 2nd is for data, the last one is for file sharing. The connector between MSA and ESXis is FC HBA dual ports. I'm not sute what is the best strategy to create a volume in MSA to meet with my requirement above or other way suggestion, please.

Note: why have to create 3 volumes, I would like to take an easy way or benefit in backup data.

Thanks.