A company has purchased a Huawei hybrid flash memory system as a decision support system and plans to make performance adjustments.
After testing, storage engineers can obtain the following information:
1) The size of each I/O ranges from 64KB to 1MB
2) The percentage of sequential read I/Os is 90%.
3) The average utilization rate of front-end bandwidth is 90%.
4) The host application is the database.
Based on the above information, which of the following performance adjustment measure are not appropriate for this situation?

When a hard disk failure occurs in the Huawei hybrid flash storage system, the system will take the hard disk offline, and the hard disk online diagnosis module will read the ( ) information of the hard disk, perform a series of analysis, testing, and recovery measures for the faulty disk, and restore the normal hard disk. Connecting back to RAID extends the service life of the hard disk.

HyperMetro is an active-active solution, which achieves the purpose of active-active in the entire solution through the design of multiple layers of active-active.
Which of the following descriptions about the active-active design of the storage layer of the HyperMetro architecture in data center A and data center B are correct? (Multiple Choice)

Which of the following is the upgrade method for the controller to be upgraded in batches and reset to take effect?

Which of the following descriptions about the InfoEqualizer feature of Huawei OceanStor 9000 storage system is incorrect? (Multiple Choice)