There is a long-running dispute between the provider Cogent Communications and Hurricane Electric. Cogent has been refusing to peer settlement-free with Hurricane Electric since 2009.
On August 15, 2022 we expect all migrations to be complete, with no remaining EC2-Classic resources present in any AWS account.
但後來還是晚了整整一年，到 2023/08/15 (剛好晚了一年) 才全部退役：
On August 15, 2023, we shut down the last instance of Classic.
而公告上面的更新則是在 2023/08/23 更新：
Update (August 23, 2023) – The retirement announced in this blog post is now complete. There are no more EC2 instances running with EC2-Classic networking.
因為真的太久沒用了，看了 Werner Vogels 的描述才能回想起來當時的架構，似乎是有一大鍋這件事情，靠 security group 拆開大家：
When we launched EC2 in 2006, it was one giant network of 10.2.0.0/8. All instances ran on a single, flat network shared with other customers. It exposed a handful of features, like security groups and Public IP addresses that were assigned when an instance was spun up.
Retiring services isn’t something we do at AWS. It’s quite rare. Companies rely on our offerings – their businesses literally live on these services – and it’s something that we take seriously. For example SimpleDB is still around, even though DynamoDB is the “NoSQL” DB of choice for our customers.
用「List of AWS Services Available by Region」這頁查了一下，SimpleDB 的區域意外的還不少，在 us-east-1、us-west-1、us-west-2、ap-southeast-1、ap-southeast-2、ap-northeast-1、eu-west-1 以及 sa-east-1。
Amazon SES 預設是共用 IP pool，所以遇到這種情況不算太意外，但應該是暫時性的，不過發問的作者有提到後來的解法是花 US$25/mo 使用 Dedicated IP 解決 IP reputation 的問題 (在 id=37177533 這邊)：
Thanks you all for comments. I have made a decision to subscribed to dedicated IPs (credits: @slau).
The differentiating factor between our current AWS SES plan and the competitors (mentioned in the comments) is having a dedicated IP. With our current volume, none of the competitors are anyway near AWS SES costs. So, moving to a dedicated IPs thats cost 25$ extra not only solves our issue, but also no change in code/infrastructure.
AWS Outposts is a family of fully managed solutions delivering AWS infrastructure and services to virtually any on-premises or edge location for a truly consistent hybrid experience. Outposts solutions allow you to extend and run native AWS services on premises, and is available in a variety of form factors, from 1U and 2U Outposts servers to 42U Outposts racks, and multiple rack deployments.
Build with AWS managed secure cloud infrastructure
Benefit from the same AWS security standards that apply to AWS Regions and AWS Local Zones and are delivered with the security of the AWS Nitro System to help ensure confidentiality and integrity of customer data.
另外在公告裡面提到的服務，跟 Outposts 有些差異：
AWS services, such as Amazon EC2, Amazon Virtual Private Cloud (Amazon VPC), Amazon Elastic Block Store (Amazon EBS), Elastic Load Balancing (ELB), Amazon Elastic Container Service (Amazon ECS), Amazon Elastic Kubernetes Service (Amazon EKS), and AWS Direct Connect are available in Dedicated Local Zones.
Q: How are AWS Dedicated Local Zones different from AWS Outposts?
AWS Outposts is designed for workloads that need to remain on-premises due to latency requirements, where customers want those workloads to run seamlessly with their other workloads in AWS. AWS Outposts racks are fully managed and configurable compute and storage racks built with AWS-designed hardware that allow customers to run compute and storage on-premises, while seamlessly connecting to AWS’s broad array of services in the cloud.
AWS Dedicated Local Zones are designed to eliminate the operational overhead of managing on-premises infrastructure at scale. Some customers have long-term, complex cloud migration projects and need infrastructure that seamlessly scales to support their large-scale demand. Some of these customers represent the interests of a customer community and also need multi-tenancy features to efficiently coordinate across their stakeholders. Dedicated Local Zones enable these customers to reduce the administrative burden of managing their own infrastructure on-premises with scalable, resilient, and multitenant cloud infrastructure that is fully AWS-managed and built exclusively for their use.
Storage Price: Effective October 3, 2023, we are increasing the monthly pay-as-you-go storage rate from $5/TB to $6/TB. The price of B2 Reserve will not change.
Computer Backup Pricing: Effective October 3, new purchases and renewals will be $9/month, $99/year, and $189 for two-year subscription plans, and Forever Version History pricing will be $0.006/GB/month.
I asked the EBS team to quantify customer usage in 2023, the 15th year of EBS. Focusing first on daily usage, EBS delivers more than 100 trillion input/output operations per day.
Continuing to focus on daily usage, millions of customers use EBS daily, and these millions of customers create more than 390 million EBS storage volumes each day.
的確如同 James Hamilton 說的，EBS 現在已經變成一個蠻重要的基礎建設了，很多 AWS 上的服務都是架在他上面，像是 RDS 利用了 EBS 的 block replication 組出了 readonly repica，而非走傳統的 replication 路子。
Two engineers (me and my colleague Ted – but mostly Ted) spent about 3 months working primarily on database performance issues. There was no silver bullet. We used our telemetry to identify heavy queries, dug into the (Rails) codebase to understand where they were coming from, and optimized or eliminated them. We also tuned a lot of Postgres settings.
Two more engineers cut a path through the codebase to run certain expensive read-only queries on a replica DB. This effort bore fruit around the same time as (1), when we offloaded our single most frequent query (a SELECT triggered by polling web clients).
這兩個方法大幅降低了資料庫的 peak loading，從 90% 降到 30%：
These two efforts together reduced the maximum weekly CPU usage on the database from 90% to 30%.
Today, we’re announcing the general availability of new, general purpose Amazon EC2 M7a instances, powered by the 4th Gen AMD EPYC (Genoa) processors with a maximum frequency of 3.7 GHz, which offer up to 50 percent higher performance compared to M6a instances.
