The following is the correct statement about Huawei hybrid flash storage SmartQos I/O priority scheduling:

The I/O priority is based on the priority of the LUN where the IO is located. The priority of the LUN is determined by the user according to

The business importance of deployment on the LUN is determined

When the hard disk occupancy rate is too high, in order to ensure the reliability of the hard disk, the system will add time to the low priority I/O

Delay to control, and try not to affect high-priority I/O

I/O priority scheduling resources include front-end host concurrent resources, back-end hard disk concurrent resources,

CPU computing resources and cache resources