Skip to content

Latest commit

 

History

History
86 lines (64 loc) · 2.68 KB

overview.md

File metadata and controls

86 lines (64 loc) · 2.68 KB

EBS Overview

Elastic Block Store (EBS)

  • Storage volumes that can be attached to an EC2 instance (virtual hard disk)

    • Install Operating System
    • Create File System
    • Install Applications
    • Store Files

  • Designed for mission critical, production workloads

  • Highly Available: Automatically replicated within a single availablity zone to protect against hardware failures

  • Scalable. Dymanically change volume size or type with no downtime or performance impact to your systems

    • You may have to resize file system

Volume Types

General Purpose SSD (GP2)

  • Balance of price and performance
  • 3 IOPS per GB, up to 16,000 IOPS per volume
  • Volumes smaller than 1 TB can burst up to 3,000 IOPS
  • Good for boot volumes or development/test applications that are not latency sensitive

General Purpose SSD (GP3)

  • Predictable 3,000 IOPS baseline performance at 125 MB/s regardless of volume size
  • Ideal for applications that require high performance and low cost
    • MySQL
    • Virtual Desktops
    • Hadoop Analytics
  • Users can scale up to 16,000 IOPS and 1,000 MB/s for an additional fee

Provisioned IOPS SSD (io1)

  • High performance, most expensive
  • Up to 64,000 IOPS per volume
  • 50 IOPS per GB
  • Use if you need more than 16,000 IOPS
  • Designed for I/O intensive applications (Databases, latency sensitive workloads)

Provisioned IOPS SSD (io2)

  • Same price as io1
  • Latest generation
  • Higher durability and more IOPS
    • 500 IOPS per GB up to 64,000 IOPS
    • 99.999% durability (instead of 99.9%)
  • Designed for I/O intensive applications (Databases, latency sensitive workloads)

Throughput Optimized HDD (st1)

  • Low cost HDD volume
  • Baseline 40 MB/s per TB throughput
  • Burst up to 250 MB/s per TB
  • Maximum throughput of 500 MB/s per volume
  • Designed for frequently accessed, throughput intensive workloads
    • Big data, data warehouses, ETL, log processing
    • Good for storing large amounts of data
  • Cannot be a boot volume

Cold HDD (SC1)

  • Lowest cost option
  • Baseline 12 MB/s per TB throughput
  • Burst up to 80 MB/s per TB
  • Maximum throughput of 250 MB/s per volume
  • Designed for applications where performance is not a factor
    • File server
  • Cannot be a boot volume

IOPS vs Throughput

IOPS

  • Measures number of read/write operations per second
  • Important metric when tracking latency for high transaction workloads
  • Execute reads/writes quickly
  • If high throughput is a requirement, choose Provisioned IOPS SSD (io1 or io2)

Throughpu

  • Measures number of bit read/written per second
  • Important metric for large datasets and complex queries
  • If dealing with large datasets is a requirement, choose Throughput Optimized HDD (st1)