Hi, I'd like to find orphaned storage across DMX and VMAX.

Not interested in reclaiming thin space, but to find devices that are either in a Storage Group that are not in Masking Views, or other situations where devices could appear to be in use from some perspectives, or DMX devices that are mapped / masked to host WWNs that are no longer there using login info etc, and similar situations.

There must be many people who have tackled this in many ways. I can see approaches to collect the info that I want, but if folk have good ways of collecting this, to save reinventing the wheel, techniques like that would be greatly appreciated?

Many thanks.