Which are the possible causes for file read/write performance decrease? (Select 3 answers)

Which of the following are possible challenges facing massive data management? (Select 2 answers)

In an N8500 system, if an engine node is faulty and the other components are in the normal state, the
consequences do not include which of the following?

In an N8500 clustered NAS system, the engine enclosures exchange cluster control information over a Fibre
Channel heartbeat network.

Which command is used to check whether a file system is mounted using the support account for N8500
V200R001?

A 2-node N8500 clustered NAS engine is a 4 U enclosure. The heartbeat links between the two nodes are set
up based on the internal PCIe channels.

You can check VCS cluster logs by viewing the Engine_A.log file in the /var/VRTSvcs/log directory on an N8500
storage system.

Multiple users access a multimedia VOD application at different bit rates. Which prefetch policy should be
selected for the LUNs on the background N8500 clustered NAS storage system?

Scale-out is a horizontal expansion architecture that addresses the needs and challenges caused by rapid data
growth and complex data changes. The scale-out architecture features distributed processing, online
expansion, data sharing, and clustering.

Which of the following statements about the system services of the OceanStor 9000 are correct? (Select 2
answers)