daverush
1 Nickel

Re: Failed:Add SDS device ScaleIO-XXX to Storage Pool(Unknown ScaleIO error)

My suspicion is that connectivity is the issue.

As it's ESXi, check out the diagnostic steps in https://support.emc.com/kb/466097.

If you don't have access to that, you can find the same steps in a similar forum post: Deploy Scale IO error Configure SDC driver on ESX.