(Optional) Disabling SMMU

Before deploying Ceph, disable SMMU to prevent it from affecting Ceph performance.

1. Access the BIOS.

   For details, see "Accessing the BIOS" in TaiShan Server BIOS Parameter Reference (Kunpeng 920 Processor).

2. Choose Advanced > MISC Config.

   

3. Set Support Smmu to Disabled and press F10 to save the settings and exit.