Which solution will improve storage performance?
Add more Provisioned IOPS SSD (io1) EBS volumes. Use OS commands to create a Logical Volume Management (LVM) stripe.
Increase the Provisioned IOPS SSD (io1) EBS volume to more than 64,000 IOPS.
Increase the size of the Provisioned IOPS SSD (io1) EBS volume to 2 TB.
Change the EC2 Linux instance to a storage optimized instance type. Do not change the Provisioned IOPS SSD (io1) EBS volume.
Explanations:
Adding more Provisioned IOPS SSD (io1) EBS volumes and using LVM to stripe them can significantly improve IOPS performance by distributing I/O operations across multiple volumes, effectively increasing overall throughput.
The maximum IOPS for an io1 volume is capped at 64,000 IOPS, regardless of volume size. Increasing the IOPS beyond this limit is not possible.
Increasing the size of the Provisioned IOPS SSD (io1) volume to 2 TB would not increase IOPS beyond the 64,000 IOPS cap. The IOPS limit is tied to the provisioned IOPS, not just the volume size.
Changing to a storage optimized instance type could help with overall performance, but if the bottleneck is the IOPS limit of the EBS volume itself, this change alone would not resolve the issue. The underlying storage performance needs to be improved.
In my opinion, the answer is:
Add more Provisioned IOPS SSD (io1) EBS volumes. Use OS commands to create a Logical Volume Management (LVM) stripe.