Why doesn't VmWare ESXi 6.5 see LUNs larger than 0 on QSAN storage?

Question

VMware

Given: SHD QSAN XS1226D, Host with VmWare ESXi 6.5 - 3 pieces, optical switch IBM, Host with Linux CentOS7.

All this is connected to each other by FB cables.

LUNs 1 to 6 are marked on the storage system - the host with CentOs7 perfectly sees both the paths and the storage devices.
LUN 0 is marked on the storage system - hosts with ESXi 6.5 see both the path and the storage device.
We mark any LUN with a number other than 0 on the storage system - hosts with ESXi 6.5 see the paths, BUT they do not see the devices (see screenshot)



Has anyone encountered a similar problem? Why doesn't ESXi see devices for LUNs other than 0?

Answer 1

The problem was with 4Kn disks, ESXi does not detect such disks in the attached storage system, only locally in the host such disks can be used in ESXi and only in version 6.7