You can implement CRR with the native Amazon S3 Replication or\u00a0use\u00a0<\/strong>Resilio Active Everywhere<\/strong><\/a>\u00a0(formerly Connect) to achieve fast, reliable, and efficient replication<\/strong>\u00a0across any AWS region and service (or even other cloud providers and on-prem environments).<\/p>\n\n\n\n In this guide, we\u2019ll start by showing you how to set up CRR using S3 Replication and cover the five key steps for setting up replication between buckets in different regions \u2014 from creating Amazon S3 buckets to configuring a replication rule and more.<\/p>\n\n\n\n In the second part of this guide, we\u2019ll show you the benefits of CRR with Resilio Active Everywhere. Specifically, you\u2019ll learn how Resilio Platform makes replication:<\/p>\n\n\n\n Companies like Exxon Mobil, KFC, and Blizzard use Resilio Active Everywhere for fast, efficient, and flexible replication. To learn how Resilio Platform can help you achieve fast and reliable\u00a0CRR,\u00a0<\/em>schedule a demo with our team today<\/em><\/strong><\/a>.<\/p>\n\n\n\n In this section, we\u2019ll talk through five basic steps for configuring CRR:<\/p>\n\n\n\n We\u2019ll also provide links to relevant AWS tutorials if you need more context around a particular step or topic. If you already know how to do this and just want to learn how to make cross-region replication faster, you can skip ahead here<\/a>.<\/p>\n\n\n\n Creating a new S3 bucket is pretty straightforward. Just log into the AWS Management Console, open S3, choose \u201cBuckets\u201d from the menu on the left, and click on \u201cCreate bucket\u201d.<\/p>\n\n\n\n From here, you can:<\/p>\n\n\n\n After that, just repeat the process to create another bucket in a different region.<\/p>\n\n\n\n Select the bucket you want to use as a source and go to \u201cManagement\u201d \u2192 \u201cReplication rules\u201d \u2192 \u201cCreate replication rule\u201d.<\/p>\n\n\n\n You can give the rule a descriptive name and choose \u201cEnabled\u201d if you want it to start working after being created. <\/p>\n\n\n\n You can also give it a priority number \u2014 the lower that number, the higher the priority of the rule. For example, the S3 objects under a priority 1 rule will get replicated before ones under a priority 2 rule, and so on.<\/p>\n\n\n\n Once the rule is enabled, you can select:<\/p>\n\n\n\n <\/p>\n\n\n\n AWS Identity and Access Management (IAM) lets you specify who has access to specific services and resources. <\/p>\n\n\n\n In order for replication to work, the IAM role associated with your replication configuration must have sufficient permissions to write new objects in the new destination bucket. <\/p>\n\n\n\n If you\u2019ve used S3 Replication before, you likely already have an IAM role, which you can select from the \u201cChoose from existing IAM roles\u201d option. If not, you\u2019ll need to create a new IAM role that gives Amazon S3 permissions to read and replicate objects.<\/p>\n\n\n\n Here\u2019s one example of such an IAM policy from AWS\u2019 documentation<\/a>:<\/p>\n\n\n\n <\/p>\n\n\n\n In this example, DOC-EXAMPLE-BUCKET1 is the source bucket and DOC-EXAMPLE-BUCKET2 is the destination. The policy grants access to Amazon S3 to retrieve the replication configuration and list the bucket content. It also lets S3 get a specific object version and the access control lists (ACLs) associated with it, as well as replicate and delete markers to the destination bucket.<\/p>\n\n\n\n Besides the fundamental settings from the previous three steps, S3 Replication also offers many optional features. The most popular of these are:<\/p>\n\n\n\n After adjusting all the settings, you can go back and review the entire replication configuration. To test if everything\u2019s working correctly, you can upload a new object to the source bucket and wait to see if it gets replicated to the destination.<\/p>\n\n\n\n If there are no issues, you can upload the rest of your objects and start monitoring the replication process. This can be done by opening the source bucket, clicking on the \u201cMetrics\u201d tab, and checking out the operations pending replication, bytes pending replication, and replication <\/strong>latency<\/strong> for your replication rule.<\/p>\n\n\n If you enable replication metrics and notifications as we showed in the previous step, you can also use Amazon CloudWatch to get more detailed info about each replication rule, as well as the source and destination buckets.<\/p>\n\n\n\n As you can see, S3 Replication is complex and time-consuming to set up. Additionally, it can also be:<\/p>\n\n\n\n Fortunately, Resilio Platform can help you avoid both issues.<\/p>\n\n\n\n Resilio Active Everywhere (formerly Connect) is our replication solution that delivers\u00a0industry-leading replication speed<\/strong>\u00a0thanks to its organically scalable P2P design and proprietary WAN transfer technology. For example:<\/p>\n\n\n\n Besides typically being between 3 and 10 times faster than traditional replication solutions, our software is also:<\/p>\n\n\n\n In the next sections, we\u2019ll discuss five key benefits of using Resilio Active Everywhere to replicate your data across regions.<\/p>\n\n\n\n Most traditional replication<\/a> and file transfer solutions<\/a> are TCP-based and use a point-to-point architecture. But Resilio Platform relies on a unique peer-to-peer (P2P) topology and WAN optimization technology which lets it achieve much faster replication times while being more reliable and fault-tolerant.<\/p>\n\n\n\n Here\u2019s why:<\/p>\n\n\n\n The two most widely-used replication topologies \u2014 client-server and \u201cfollow-the-sun\u201d \u2014 have downsides that prevent them from producing fast replication speeds.<\/p>\n\n\n\n In both cases, replicating is always limited to one device at a time<\/strong>. This inevitably leads to slower replication since the process can only take place between two devices at a time. It also creates a single point of failure, since any sort of issue with the replicating or receiving device \u2014 like a slow network or outage \u2014 can obstruct the replication to all other devices.<\/p>\n\n\n\n Also, most solutions use TCP for transfer over WANs (wide area networks). This further slows down replication speeds since TCP struggles with WAN transfers. Packet loss and latency, which are defining characteristics of WANs, both disrupt TCP, leading to replication delays and an inability to make the most out of expensive WAN connections.<\/strong><\/p>\n\n\n\n Resilio Active Everywhere’s unique P2P architecture and WAN optimization technology help you avoid both issues.<\/p>\n\n\n\n First, our software\u2019s P2P architecture lets every device replicate data to the others in your environment. <\/strong>This means replication isn\u2019t limited to a single device, so there\u2019s no risk of your replication environment failing.<\/p>\n\n\n\n Our solution can also turn files into several chunks when replicating data. This process \u2014 called file chunking \u2014 lets every separate part be transferred independently, leading to transfer speeds that are between 3 and 10 times faster than traditional replication solutions.<\/p>\n\n\n The unique P2P architecture and the ability to hash files in chunks make Active Everywhere one of the few replication platforms that can reliably perform bidirectional and multi-directional sync. With Active Everywhere you can transfer or sync files in any direction:<\/p>\n\n\n\n N-way transfer makes Resilio Platform an ideal solution for syncing large numbers of servers<\/strong> (because every server can sync across the entire environment) and collaborating efficiently in a remote or distributed workforce<\/strong> (because everyone, regardless of their location, can make and share file changes with others instantly).<\/p>\n\n\n\n Second,\u00a0Resilio Active Everywhere’s proprietary WAN\u00a0optimization\u00a0technology<\/strong>\u00a0maximizes replication speed across\u00a0any<\/em>\u00a0network and overcomes\u00a0latency\u00a0and packet loss.<\/strong><\/p>\n\n\n\n Resilio uses a proprietary UDP-based transfer protocol called Zero Gravity Transport<\/strong>\u2122 (ZGT) that:<\/p>\n\n\n\n You can check out our speed calculator<\/a> to estimate how much time Resilio\u2019s technology can save your organization, depending on your use case.<\/p>\n\n\n Finally, Resilio Platform is also an ideal disaster recovery solution<\/a> because:<\/p>\n\n\n\n As a result, companies that use Resilio can meet sub-five-second RPOs (Recovery Point Objectives) and RTOs (Recovery Time Objectives) within minutes of an outage.<\/strong><\/p>\n\n\n\n Complexity has always been a big issue with AWS. There are so many services and features you can use for storing, moving, and replicating data that it can be very difficult to find the right one for your use case.<\/p>\n\n\n\n For example, you can replicate data with AWS S3 Replication, AWS DataSync, Amazon S3 Batch Operations Copy, and the S3 Copy Object API. Each has its own strengths and limitations, as shown in the screenshot below. <\/p>\n\n\n And, as we already said, there are other features for speeding up and monitoring replication, like S3 RTC, KMS, regular replication metrics, replication metrics in CloudWatch, and more.<\/p>\n\n\n\n Resilio Platform helps you avoid that complexity by letting you control the entire replication process from a single place<\/strong>. Regardless of the replication scenario, you can set up, monitor, and control every single replication aspect from the Central Management Console shown below.<\/p>\n\n\n For example, you can use the console to:<\/p>\n\n\n\n This console can be stored in EC2 and in any Windows or Linux instance (virtual or physical), in another cloud provider, and on-premises. <\/p>\n\n\n\n In terms of simplicity, Resilio Platform also gives users easy, low-latency access to their files from a unified interface (UI)<\/strong>. This UI operates much like Microsoft OneDrive, which makes it very easy and intuitive to browse and access the files you need. <\/p>\n\n\n For example, MixHits Radio experienced massive time savings <\/strong>(around 60 hours per month) thanks to the simplicity and centralized management of the Central Management Console. <\/p>\n\n\n\n \u201cWe have gone from spending 15 hours on average per week troubleshooting conflicts in the prior solution to spending no time at all with Resilio. We configure jobs once in the Resilio\u00a0Management Console\u00a0and never have to look at it again.\u201d<\/em><\/strong><\/p>\n\n\n\n \u2014 Gary Hanna, CEO of Mixhits Radio<\/p>\n\n\n\n Read the full MixHits Radio case study here.<\/strong><\/a><\/p>\n\n\n\n Unlike many file gateway and replication solutions, Resilio Active Everywhere comes with built-in security features, including:<\/p>\n\n\n\n All Resilio security features have been verified by 3rd-party security experts to ensure they\u2019re up-to-date with the strictest security standards.<\/p>\n\n\n\n Most replication solutions are single-vendor proprietary. They\u2019re limited to using the product within a platform or cloud. For example, it\u2019s relatively simple to replicate data across AWS using native AWS replication solutions \u2014 but these solutions do not interoperate with other cloud providers.<\/p>\n\n\n\n Resilio is multi-cloud and can be deployed on any infrastructure<\/strong> \u2014 single-cloud, multi-cloud, hybrid cloud, on-prem, and so on. This means you can:<\/p>\n\n\n\n As a result, you can avoid vendor lock-in and replicate your data across a variety of regions, services, cloud providers, and on-prem storage. For example, Resilio Platform lets you:<\/p>\n\n\n\n <\/p>\n\n\n\n Resilio Active Everywhere’s efficient P2P design optimizes replication and data transfer by only sending the changed portion of files in real-time. Efficiency is also obtained by avoiding unnecessary data movement, such as egress via:<\/p>\n\n\n\n\n
How to Set Up S3 Cross-Region Replication (in 5 Steps)<\/h2>\n\n\n\n
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1. Create S3 Buckets in Different Regions<\/h3>\n\n\n\n
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![\"Create](\"https:\/\/blog.resilio.com\/wp-content\/uploads\/2023\/08\/create-bucket.png\")
<\/figure>\n<\/div>\n\n![\"Enable](\"https:\/\/blog.resilio.com\/wp-content\/uploads\/2023\/08\/bucket-versioning.png\")
2. Configure a Replication Rule<\/h3>\n\n\n\n
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![\"Storage](\"https:\/\/blog.resilio.com\/wp-content\/uploads\/2023\/08\/s3-cross-region-replication-9-1024x852.png\")
3. IAM Considerations<\/h3>\n\n\n\n
{\n \"Version\":\"2012-10-17\",\n \"Statement\":[\n {\n \"Effect\":\"Allow\",\n \"Action\":[\n \"s3:GetReplicationConfiguration\",\n \"s3:ListBucket\"\n ],\n \"Resource\":[\n \"arn:aws:s3:::DOC-EXAMPLE-BUCKET1\"\n ]\n },\n {\n \"Effect\":\"Allow\",\n \"Action\":[\n \"s3:GetObjectVersionForReplication\",\n \"s3:GetObjectVersionAcl\",\n \"s3:GetObjectVersionTagging\"\n ],\n \"Resource\":[\n \"arn:aws:s3:::DOC-EXAMPLE-BUCKET1\/*\"\n ]\n },\n {\n \"Effect\":\"Allow\",\n \"Action\":[\n \"s3:ReplicateObject\",\n \"s3:ReplicateDelete\",\n \"s3:ReplicateTags\"\n ],\n \"Resource\":\"arn:aws:s3:::DOC-EXAMPLE-BUCKET2\/*\"\n }\n ]\n}\n<\/code><\/pre>\n\n\n\n4. Additional Options<\/h3>\n\n\n\n
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5. Review and Monitor the Replication Process <\/h3>\n\n\n\n
![\"Replication](\"https:\/\/blog.resilio.com\/wp-content\/uploads\/2023\/08\/replication-metrics.png\")
How to Speed Up and Simplify Cross-Region Replication with Resilio Active Everywhere<\/h2>\n\n\n\n
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Fast, Reliable, and Fault-Tolerant Replication<\/h3>\n\n\n\n
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![\"GIF](\"https:\/\/blog.resilio.com\/wp-content\/uploads\/2022\/09\/image2.gif\")
<\/figure>\n<\/div>\n\n\n\n
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![\"Speed](\"https:\/\/blog.resilio.com\/wp-content\/uploads\/2023\/08\/s3-cross-region-replication-3-1024x668.png\")
<\/figure>\n<\/div>\n\n\n\n
Simple and Centralized Management<\/h3>\n\n\n\n
![\"AWS](\"https:\/\/blog.resilio.com\/wp-content\/uploads\/2023\/08\/s3-cross-region-replication-6-1024x545.png\")
![\"\"](\"https:\/\/blog.resilio.com\/wp-content\/uploads\/2025\/10\/agent-hybrid-cloud-gateway_1-1-1024x662.jpg\")
<\/figure>\n<\/div>\n\n\n\n
![\"How](\"https:\/\/blog.resilio.com\/wp-content\/uploads\/2023\/04\/always-keep-on-this-device-option-761x1024.png\")
<\/figure>\n<\/div>\n\n\nEnd-to-End Security by Default<\/h3>\n\n\n\n
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Deployment and Replication Flexibility<\/h3>\n\n\n\n
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![\"Storage](\"https:\/\/blog.resilio.com\/wp-content\/uploads\/2023\/08\/s3-cross-region-replication-8-1024x776.png\")
<\/figure>\n<\/div>\n\n\nEfficiency<\/h3>\n\n\n\n
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