Which analogous command to #show tech in Huawei devices?

Hi helpmeplz,

The display diagnostic-information command displays diagnostic information about the current system.

When a fault occurs in the system, if it is difficult to determine the module that causes the fault, you can use the display diagnostic-information command to collect diagnostics information for locating the fault. The display diagnostic-information command combines the functions of multiple common display commands, such as the display clock, display version, and display current-configuration commands. Running this command equals to the running of these display commands.

This command is similar to the  show tech command of Cisco.

I hope it helps!