“Amazon Elastic Block Store”的意思、由来-开放百科全书

Amazon Elastic Block Store (EBS) provides raw block-level storage that can be attached to Amazon EC2 instances and is used in Amazon Relational Database Service (RDS)^[1]. These block devices can then be used like any raw block device. In a typical use case, this would include formatting the device with a filesystem and mounting said filesystem. In addition EBS supports a number of advanced storage features, including snapshotting and cloning. As of June 2014, EBS volumes can be up to 1TB in size. EBS volumes are built on replicated back end storage, so that the failure of a single component will not cause data loss.

The EBS product was introduced to the general public by Amazon in August 2008^[2]

and as of March 2018 30 GB of free space is included in the free tier of Amazon Web Services at least since 2017.^[3]

Amazon EBS provides a range of options for storage performance and cost for workload. These options are divided into two major categories: SSD-backed storage for transactional workloads, such as databases and boot volumes (performance depends primarily on IOPS), and HDD-backed storage for throughput intensive workloads, such as MapReduce and log processing (performance depends primarily on MB/s).

Amazon EBS Volume Types

The following table shows use cases and performance characteristics of current generation EBS volumes:^[4]

Solid State Drives (SSD)

Hard Disk Drives (HDD)

Volume Type

EBS Provisioned IOPS SSD (io1) (since 2012) ^[5]

EBS General Purpose SSD (gp2)*

Throughput Optimized HDD (st1)

Cold HDD (sc1)

Short Description

Highest performance SSD volume designed for latency-sensitive transactional workloads

General Purpose SSD volume that balances price performance for a wide variety of transactional workloads

Low cost HDD volume designed for frequently accessed, throughput intensive workloads

Lowest cost HDD volume designed for less frequently accessed workloads

Use Cases

I/O-intensive NoSQL and relational databases

Boot volumes, low-latency interactive apps, dev & test

Big data, data warehouses, log processing

Colder data requiring fewer scans per day

API Name

io1

gp2

st1

sc1

Volume Size

4 GB - 16 TB

1 GB - 16 TB

500 GB - 16 TB

Max IOPS**/Volume

32,000

10,000

500

250

Max Throughput/Volume

500 MB/s

160 MB/s

500 MB/s

250 MB/s

Max IOPS/Instance

80,000

Max Throughput/Instance

1,750 MB/s

Price

$0.125/GB-month

$0.065/provisioned IOPS

$0.10/GB-month

$0.045/GB-month

$0.025/GB-month

Dominant Performance Attribute

IOPS

MB/s

See also

References

1. ^https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/CHAP_Storage.html
2. ^{{cite web |url= http://aws.typepad.com/aws/2008/08/amazon-elastic.html |title=Amazon EBS (Elastic Block Store) - Bring Us Your Data |work= Amazon Web Services Blog |date= August 20, 2008 |archiveurl= https://web.archive.org/web/20110328011236/http://aws.typepad.com/aws/2008/08/amazon-elastic.html| archivedate= March 28, 2011 |deadurl= no |accessdate= May 31, 2013 }}
3. ^https://aws.amazon.com/free/?nc1=f_ls
4. ^{{Cite web|url=https://aws.amazon.com/ebs/details/|title=Amazon Elastic Block Store (Amazon EBS) – Details – Amazon Web Services (AWS)|website=Amazon Web Services, Inc.|language=en-US|access-date=2017-12-31}}
5. ^https://aws.amazon.com/about-aws/whats-new/2012/07/31/announcing-provisioned-iops-for-amazon-ebs/

Amazon EBS Volume Types

See also

References

External links