If you're using some particular Huawei widget, it'd be very helpful if you identified the specific Huawei model involved, and provided information on the OpenVMS server model, OpenVMS version and patch level, and the particular hardware storage I/O path — controller, cabling, etc — involved in this configuration.
This Huawei OceanStor configuration very likely isn't supported by HPE, VSI or Huawei, and you almost certainly already know that, too (Why unsupported? You'd have doc for it, and it'd probably connect and work, if the configuration was considered supported by one or more of the vendors involved.)
If you're working for Huawei or a Huawei reseller, contact the folks at VSI directly.
HPE is unlikely to be interested given they're exiting the OpenVMS business in the relatively near future, but you could certainly ask them and see if they're interested in helping qualify this configuration.
If you're rolling your own Fibre Channel Storage Area Networkl (FC SAN) support here — more than a few of the OceanStor boxes list Fibre Channel, among other options — you'll minimally need to understand the particular interconnect used here — the only path that appears to have some chance of working with the particular Huawei widget is probably Fibre Channel (based on a quick look at the specs for one of the many models that Huawei sells), so you'll need to zone and configure the controllers appropriately, and figure out how to set the device unit IDs — if that logical unit identifier mechanism is even present and permissible on the particular FC SAN controller in use here — that OpenVMS expects.
If the particular Huawei OceanStor device presents one or more generic SCSI storage devices, that should work with most any recent OpenVMS release, but there can be many different sorts of presentations, SCSI bus configurations, and SCSI termination and related requirements.
Related Fibre Channel info here and here.
