Is this not more of an LSI driver issue then a Tools? What version of the SAS driver are you on?
I am also using Strawind vsan, but haven’t noticed such issue with Tools 10.3.2 (LSI driver 184.108.40.206)
VMware has already released 10.3.10 – you can try either 10.3.2 or 10.3.10 and check the LSI driver version too.
P.S. I think you can also ask Starwind support, they really do a good job.