What is wrong about the description of the fusionstorage component

fusionstorageManager provides alarm, monitoring, log, configuration, and other operation and maintenance functions. Generally, an odd number of FSMs needs to be deployed to provide arbitration functions

MDC: Metadata control, realizing state control of distributed clusters, and controlling data distribution rules, data reconstruction rules, etc.

VBS, virtual block storage management software, is responsible for the management of volume metadata, provides distributed cluster access point services, and enables computing resources to pass through VBS

Access distributed storage resources

OSD: Object storage device services, perform specific I/O operations