You are working as an architect in your organization`s Linux environment. An application team uses EBS volume for their database workloads which would need a high throughput, low latency and maximum I/O. They chose Provisioned IOPS EBS volume for better performance. However, after setting up the entire application, they notice the performance is not up to the mark. Which performance tuning mechanisms would you suggest? Please choose 3 correct options.

Answer options:

A.Use EBS-Optimized Instances.
B.Use Throughput optimized HDD volume types for low latency and maximum I/O.
C.Use a Modern Linux Kernel.
D.Use RAID 0 to Maximize Utilization of Instance Resources.
E.Performance of Provisioned IOPS SSD volume increase with volume size. Increase EBS volume size.

Answer: A, C, D 
Option A is correct.
Option B is not correct. Provisioned IOPS SSD volume type is more suitable for database workloads.
Option C is correct.
Option D is correct.
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSPerformance.html#tips
Option E is not correct. The statement is applicable to General Purpose SSD, not for Provisioned IOPS SSD.https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVolumeTypes.html#EBSVolumeTypes_gp2
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVolumeTypes.html#EBSVolumeTypes_piops