esxi 8.0.3 not recognizing vmfs 7.0.3 disk

[RobMerritt]

I installed esxi 8.0.,3 on one disk and left the old 7.0.3 disk in but for some reasone it is not recognized as a datastore , any ideas  on how to get it on board?

[snapfriend]

Hello @RobMerritt

Your issue or question resembles with VMware kb article. You will get a help from given article. 

https://knowledge.broadcom.com/external/article/410154/local-disk-not-visible-in-new-datastore.html