A business shares files across many Linux Amazon EC2 instances using an Amazon Elastic File System (Amazon EFS) file system. For 15 minutes or more, a SysOps administrator notes that the file system’s PercentIOLimit statistic is continually set to 100%. Additionally, the SysOps administrator observes that the program responsible for reading and writing to that file system is performing badly. While accessing the file system, the program demands a high throughput and IOPS.
What should the SysOps administrator do to correct the PercentIOLimit metric’s persistently high value?
A. Create a new EFS file system that uses Max I/O performance mode. Use AWS DataSync to migrate data to the new EFS file system.
B. Create an EFS lifecycle policy to transition future files to the Infrequent Access (IA) storage class to improve performance. Use AWS DataSync to migrate existing data to IA storage.
C. Modify the existing EFS file system and activate Max I/O performance mode.
D. Modify the existing EFS file system and activate Provisioned Throughput mode.
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