What are the various types of EBS volumes?
There are five types of EBS volumes available as below :
General Purpose SSD (gp2) : SSD (Solid State Drive) is the volume with which EC2 chooses as the root volume of your instance by default. For small input/output operations, SSD is many times faster than HDD (Hard Disk Drive). It gives a balance between price and performance (measured in IOPS - Input-Output Operations per second).
Provisioned IOPS SSD (io1) : This is the most expensive and fastest EBS volume. They are intended for I/O-intensive applications like large Relational or NoSQL databases.
Throughput Optimized HDD (st1) : These are low-cost magnetic storage volumes whose performance is measured in terms of throughput.
Cold HDD (sc1) : These are even less expensive magnetic storage options than Throughput Optimized. They are intended for large, sequential cold workloads, such as those found on a file server.
Magnetic (standard) : These are older generation magnetic drives that are best suited for workloads with infrequent data access.
