AWS Notes
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AWS Notes — Amazon Web Services Educational and Information Channel

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При монтировании #EFS через #VPC_peering нужно учитывать, что не все инстансы это позволяют, а лишь современные:
· T3
· C5
· C5d
· I3.metal
· M5
· M5d
· R5
· R5d
· z1d

Иначе (как я последние два дня с T2) получаем ошибку по таймауту: mount.nfs4: Connection timed out.

https://docs.aws.amazon.com/efs/latest/ug/manage-fs-access-vpc-peering.html
Amazon EFS + IAM Authorization + Access Points

EFS серьёзно прокачался:

https://aws.amazon.com/blogs/aws/new-for-amazon-efs-iam-authorization-and-access-points/

Теперь, вслед за S3 Access Points у нас есть EFS Access Points и теперь можно переопределить все операции на своего юзера.

Другая фичиа - IAM Authorization, в том числе Resource-Based политики доступа для EFS, доступ к которому теперь можно рулить через IAM, аналогично с Amazon S3 bucket policies.

Но самое интересное, это что добавление доступа по IAM открывает прямую дорогу к появлению persistent storage для Fargate. Как раз при помощи свежевышедших фич. В общем, выделяем желудочный сок и ждём.

#EFS
Amazon EFS получил новую консоль и автоматический бэкап:

https://aws.amazon.com/blogs/storage/making-it-even-simpler-to-get-started-with-amazon-efs/

То, что раньше приходилось настраивать своими утилитами или через AWS Backup теперь автоматически настраивается для всех вновь создаваемых EFS (для уже имеющихся авто-бэкап не включится).

#EFS
Amazon EFS Intelligent-Tiering:

https://aws.amazon.com/blogs/aws/new-amazon-efs-intelligent-tiering-optimizes-costs-for-workloads-with-changing-access-patterns/

With EFS Intelligent-Tiering, lifecycle management monitors the access patterns of your file system and moves files that have not been accessed for the duration of the lifecycle policy from EFS Standard or EFS One Zone to EFS Standard-IA or EFS One Zone-IA, depending on whether your file system uses EFS Standard or EFS One Zone storage classes. If the file is accessed again, it is moved back to EFS Standard or EFS One Zone storage classes.

#EFS
​​EFS Replication:

https://aws.amazon.com/blogs/aws/new-replication-for-amazon-elastic-file-system-efs/

🔸 Once configured, replication begins immediately. All replication traffic stays on the AWS global backbone, and most changes are replicated within a minute, with an overall Recovery Point Objective (RPO) of 15 minutes for most file systems. Replication does not consume any burst credits and it does not count against the provisioned throughput of the file system.

🔸 EFS tracks modifications to the blocks (currently 4 MB) that are used to store files and metadata, and replicates the changes at a rate of up to 300 MB per second. Because replication is block-based, it is not crash-consistent; if you need crash-consistency you may want to take a look at AWS Backup.

🔸 You pay the usual storage fees for the original and replica file systems and any applicable cross-region or intra-region data transfer charges.

#EFS
Sub-Millisecond Read Latency for EFS:

https://aws.amazon.com/blogs/aws/amazon-elastic-file-system-update-sub-millisecond-read-latency/

◻️ Up until today, EFS latency for read operations (both data and metadata) was typically in the low single-digit milliseconds. Effective today, new and existing EFS file systems now provide average latency as low as 600 microseconds for the majority of read operations on data and metadata.
◻️ This performance boost applies to One Zone and Standard General Purpose EFS file systems. New or old, you will still get the same availability, durability, scalability, and strong read-after-write consistency that you have come to expect from EFS, at no additional cost and with no configuration changes.

#EFS
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EFS Elastic Throughput:

https://aws.amazon.com/blogs/aws/new-announcing-amazon-efs-elastic-throughput/

Elastic Throughput is ideal for spiky and unpredictable workloads with performance requirements that are difficult to forecast.
☐ When you enable Elastic Throughput on an EFS file system, you no longer need to think about actively managing your file system performance or over-paying for idle resources in order to ensure performance for your applications.
☐ When you enable Elastic Throughput, you don’t specify or provision throughput capacity, EFS automatically delivers the throughput performance your application needs while you the builder pays only for the amount of data read or written.

Elastic Throughput allows you to drive throughput:
🔹 READ — up to 3 GiB/s
🔸 WRITE — up to 1 GiB/s

#EFS
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