AWS News Blog
New – Amazon EC2 R5b Instances Provide 3x Higher EBS Performance
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In July 2018, we announced memory-optimized R5 instances for the Amazon Elastic Compute Cloud (Amazon EC2). R5 instances are designed for memory-intensive applications such as high-performance databases, distributed web scale in-memory caches, in-memory databases, real time big data analytics, and other enterprise applications.
R5 instances offer two different block storage options. R5d instances offer up to 3.6TB of NMVe instance storage for applications that need access to high-speed, low latency local storage. In addition, all R5b instances work with Amazon Elastic Block Store. Amazon EBS is an easy-to-use, high-performance and highly available block storage service designed for use with Amazon EC2 for both throughput- and transaction-intensive workloads at any scale. A broad range of workloads, such as relational and non-relational databases, enterprise applications, containerized applications, big data analytics engines, file systems, and media workflows are widely deployed on Amazon EBS.
Today, we are happy to announce the availability of R5b, a new addition to the R5 instance family. The new R5b instance is powered by the AWS Nitro System to provide the best network-attached storage performance available on EC2. This new instance offers up to 60Gbps of EBS bandwidth and 260,000 I/O operations per second (IOPS).
Amazon EC2 R5b Instance
Many customers use R5 instances with EBS for large relational database workloads such as commerce platforms, ERP systems, and health record systems, and they rely on EBS to provide scalable, durable, and high availability block storage. These instances provide sufficient storage performance for many use cases, but some customers require higher EBS performance on EC2.
R5 instances provide bandwidth up to 19Gbps and maximum EBS performance of 80K IOPS, while the new R5b instances support bandwidth up to 60Gbps and EBS performance of 260K IOPS, providing 3x higher EBS-Optimized performance compared to R5 instances, enabling customers to lift and shift large relational databases applications to AWS. R5b and R5 vCPU to memory ratio and network performance are the same.
| Instance Name | vCPUs | Memory | EBS Optimized Bandwidth (Mbps) | EBS Optimized IOPs@16KiB (IO/s) |
| r5b.large | 2 | 16 GiB | Up to 10,000 | Up to 43,333 |
| r5b.xlarge | 4 | 32 GiB | Up to 10,000 | Up to 43,333 |
| r5b.2xlarge | 8 | 64 GiB | Up to 10,000 | Up to 43,333 |
| r5b.4xlarge | 16 | 128 GiB | 10,000 | 43,333 |
| r5b.8xlarge | 32 | 256 GiB | 20,000 | 86,667 |
| r5b.12xlarge | 48 | 384 GiB | 30,000 | 130,000 |
| r5b.16xlarge | 64 | 512 GiB | 40,000 | 173,333 |
| r5b.24xlarge | 96 | 768 GiB | 60,000 | 260,000 |
| r5b.metal | 96 | 768 GiB | 60,000 | 260,000 |
Customers operating storage performance sensitive workloads can migrate from R5 to R5b to consolidate their existing workloads into fewer or smaller instances. This can reduce the cost of both infrastructure and licensed commercial software working on those instances. R5b instances are supported by Amazon RDS for Oracle and Amazon RDS for SQL Server, simplifying the migration path for large commercial database applications and improving storage performance for current RDS customers by up to 3x. R5b instances are also certified for production SAP workloads including SAP NetWeaver based applications and the in-memory SAP HANA database.
All Nitro compatible AMIs support R5b instances, and the EBS-backed HVM AMI must have NVMe 1.0e and ENA drivers installed at R5b instance launch. R5b supports io1, io2 Block Express (in preview), gp2, gp3, sc1, st1 and standard volumes. R5b does not support io2 volumes and io1 volumes that have multi-attach enabled, which are coming soon.
Available Today
R5b instances are available in the following regions: US West (Oregon), Asia Pacific (Tokyo), US East (N. Virginia), US East (Ohio), Asia Pacific (Singapore), and Europe (Frankfurt). RDS on r5b is available in US East (Ohio), Asia Pacific (Singapore), and Europe (Frankfurt), and support in other regions is coming soon.
Learn more about EC2 R5 instances and get started with Amazon EC2 today.
– Kame;