Types of EBS Volumes Flashcards
What does SSD stand for?
Solid-State Drive(s)
What does HDD stand for?
Hard Disk Drive(s)
What is the suggested core difference in use cases between SSD EBS volumes and HDD EBS volumes?
- SSD volumes are best where performance is measured in IOPS (number of reads/writes per second)
- HDD volumes are best where performance is measured in throughput (amount of data read/written per second)
What does IOPS stand for?
Input/Output Operations Per Second
How does Amazon EBS help ensure high availability and durability?
Each EBS volume is automatically replicated within its availability zone to protect you from component failure
What are the 5 types of EBS Storage Volumes?
- General Purpose (SSD)
- Provisioned IOPS (SSD)
- Throughput Optimized HDD
- Cold HDD
- Magnetic (HDD)
What is the use case for General Purpose SSD?
It is the EBS volume that handles most workloads, offering a balance of low cost and high performance
What is the API Name for General Purpose SSD?
gp2
What is the Maximum IOPS per volume offered for General Purpose SSD?
16,000
What is the general use case for Provisioned IOPS SSD?
- A high-performance volume designed for mission-critical apps
- think Databases
What is the API Name for Provisioned IOPS SSD?
io1
What is the Maximum IOPS per volume offered by Provisioned IOPS SSD?
64,000
What is the key factor in deciding whether to use General Purpose SSD vs. Provisioned IOPS SSD?
Cost vs. Performance
- General Purpose is lower cost but caps at 16000 IOPS/vol
- Provisioned IOPS is more expensive but goes up to 64000 IOPS/vol
What is the designed use case for Throughput Optimized HDD?
- Low-Cost (BUT NOT LOWEST-COST) HDD
- Meant for frequently accessed, throughput-intensive workloads
- e.g. Big Data / Data Warehouse
What is the API name for Throughput Optimized HDD?
st1
