A relational database is deployed to EBS-backed EC2 instances.What can striping configuration be used to increase IOPS and throughput performance of the EBS volumes?
Click on the arrows to vote for the correct answer
A. B. C. D.Answer: A.
Option A is CORRECT because RAID 0 is used to distribute I/O across volumes and achieve increased IOPS and throughput performance.
Option B is incorrect because RAID 1 is used to simultaneously write data to multiple volumes, thus providing increased data redundancy.
Options C and D are incorrect because AWS does not recommend RAID 5 and RAID 6 for EBS volumes.
Reference:
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/raid-config.html https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/raid-config.htmlThe correct answer is A. RAID 0.
Explanation:
EBS volumes can be striped together using RAID 0 to improve IOPS and throughput performance. Striping distributes data evenly across multiple disks, which allows the disks to work together to process read and write requests.
In RAID 0, the data is divided into blocks and distributed evenly across the disks in the array. This allows the disks to operate in parallel, increasing the overall read and write performance of the volume. However, because there is no redundancy in a RAID 0 configuration, if one disk fails, all data is lost.
RAID 1 is a mirroring configuration that provides redundancy by writing data to two disks simultaneously. This provides data protection, but does not improve performance.
RAID 5 and RAID 6 provide both data protection and improved performance, but they require additional overhead for parity calculation and are not recommended for use with EBS volumes.
In summary, to improve IOPS and throughput performance of EBS volumes in a relational database deployed to EBS-backed EC2 instances, RAID 0 can be used to stripe the volumes together.