If you are adding newer disks or expansion modules to an older OceanStor V3 chassis, this specific version might be the "bridge" firmware required for the hardware to be recognized. Installation Best Practices
: It is used to "rewrite" or flash firmware to a device. Instructions often require renaming the file from .exe.tmp to .exe before execution. rewritev300r13c10spc800exe
Before you run that .exe and push the firmware to your devices, remember the golden rules of network maintenance: If you are adding newer disks or expansion