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Amazon EC2 的 CRI 支援一年版本了...

Amazon EC2 的 CRI (Convertible Reserved Instance) 支援一年的合約了:「EC2 Convertible Reserved Instance Update – New 1-Year CRI, Merges & Splits」,這樣彈性再多了一些:

Today we are introducing Convertible RIs with a 1-year term, complementing the existing 3-year term.

不過 CRI 主要是用在需要換 family type 的情境下,如果是已知 family type (像是一般性的 worker 會選 C4 或是剛推出的 C5) 那麼就直接選擇 Regional RI 就好...

基本上就是讓財務操作上多個選擇 :o

Amazon EC2 的 C5 家族...

Amazon EC2 推出新的 instance:「Now Available – Compute-Intensive C5 Instances for Amazon EC2」,官方宣稱這次單位價錢的效能與 C4 相比大約提升了 25%,而極端的情況可以到 50%:

The new instances offer a 25% price/performance improvement over the C4 instances, with over 50% for some workloads.

這次比較特別的是切分方式,是 large、xlarge、2xlarge、4xlarge、9xlarge (咦?) 以及 18xlarge (...)。

然後亞洲區都還沒上 XD

You can launch C5 instances today in the US East (Northern Virginia), US West (Oregon), and EU (Ireland) Regions in On-Demand and Spot form (Reserved Instances are also available), with additional Regions in the works.

AWS 推出 NVIDIA Tesla V100 的 GPU 機種 (P3)

這次從 NVIDIA 推出到 AWS 採用比以前快好多,依照維基百科上查到的資料,Tesla V1000 是六月 21 日推出的,這樣算起來四個月後就上線了:「New – Amazon EC2 Instances with Up to 8 NVIDIA Tesla V100 GPUs (P3)」。

Today we are making the next generation of GPU-powered EC2 instances available in four AWS regions. Powered by up to eight NVIDIA Tesla V100 GPUs, the P3 instances are designed to handle compute-intensive machine learning, deep learning, computational fluid dynamics, computational finance, seismic analysis, molecular modeling, and genomics workloads.

P2 是 K80,NVIDIA 推出的時間是 2014 年的十一月了... 這時候拿出新的貨色出來算合理 XD

然後是這幾區有提供 P3:

P3 instances are available in the US East (Northern Virginia), US West (Oregon), EU (Ireland), and Asia Pacific (Tokyo) Regions in On-Demand, Spot, Reserved Instance, and Dedicated Host form.

Amazon RDS 的 RI 也支援彈性計價了

AWS 宣佈 RDS 的 RI 也支援彈性計價了:「Amazon RDS Reserved Instances Offer Instance Size Flexibility」。

也就是說跟 EC2 的 RI 方式切齊,買 db.m4.2xlarge 的 RI 後,可以用在兩台 db.m4.xlarge 上:

For example, let’s say you purchased a db.m4.2xlarge MySQL RI in US East (N. Virginia). The discounted rate of this RI can automatically apply to 2 db.m4.xlarge MySQL instances without you needing to do anything.

包括了相當多種類的 RDS,主要是沒有 license fee 的類型都包括在內了:

Amazon RDS Reserved Instance size flexibility is offered in all regions for the MySQL, MariaDB, PostgreSQL, and Amazon Aurora database engines, as well as the “bring your own license” (BYOL) edition of the Oracle database engine. To learn more about flexible RIs, please visit the Amazon RDS Reserved Instances Page.

但不包括要另外收 license fee 的 SQL Server 與 Oracle LI edition:

Size flexibility does not apply to Microsoft SQL Server and the License Included (LI) edition of Oracle.

Amazon EC2 推出 4TB 的機器

之前 Amazon EC2 記憶體最大的機器是 x1.32xlarge 的 2TB RAM (更精確是 1952GB),現在推出了 4TB RAM 的 x1e.32xlarge (3904GB):「Now Available – EC2 Instances with 4 TB of Memory」。

現在這個時間點在 us-east-1 的價錢是 USD$26.688/hour (一個月 USD$19215.36),用的到的人應該付得起?

另外值得注意的是,x1e.32xlarge 雖然比 x1.32xlarge 多了一倍的記憶體,但 vCPU 不變 (都是 128),而且 ECU 下降了 (從 349 降到 340)。

這個機器目前在 us-east-1us-west-2eu-west-1ap-northeast-1 四區提供服務:

The x1e.32xlarge instances can be launched in On-Demand and Reserved Instance form via the AWS Management Console, AWS Command Line Interface (CLI), AWS SDKs, and AWS Marketplace in the US East (Northern Virginia), US West (Oregon), EU (Ireland), and Asia Pacific (Tokyo) Regions.

EC2 的 Spot Instance 可以「接關」

Amazon EC2Spot Instance 可以「接關」了:「New – Stop & Resume Workloads on EC2 Spot Instances」。

當 Spot Instance 的競價不足以標到機器時,他會先關起來 (Stop),等到價錢低於競價後就會再打開機器,這時候的狀態就會恢復。另外也提到了必須是使用 EBS 的機器才支援:

Amazon EC2 Spot now allows Amazon EBS-backed instances to be stopped in the event of interruption, instead of being terminated when capacity is no longer available at your preferred price. Spot can then fulfill your request by restarting instances from a stopped state when capacity is available within your price and time requirements.

用法是把 Spot Instance 的關機設定設為 Stop:

To use this new feature, choose “stop” instead of “terminate” as the interruption behavior when submitting a persistent Spot request. When you choose “stop”, Spot will shut down your instance upon interruption.

恢復的時候就會儘量保持一樣地開回來 (連 instance id 都相同):

When capacity is available again within your price and time requirements, Spot will restart your instance. Upon restart, the EBS root device is restored from its prior state, previously attached data volumes are reattached, and the instance retains its instance ID.

是個接關的感覺 XD

在 EC2 上使用 25Gbps 的網路

Amazon EC2 上許多系列最大台的機器現在都可以透過特殊界面跑到 25Gbps 了:「Announcing improved networking performance for Amazon EC2 instances」。

Amazon EC2 instances now provide a maximum bandwidth of 25 Gbps. This feature is available on the largest instance sizes of the M4, X1, P2, R4, I3, F1, and G3 instance types. Using Elastic Network Adapter (ENA) based Enhanced Networking, customers can utilize up to 25 Gbps of bandwidth.

除了 AWS 提供的的 AMI 外,另外在一些官方作業系統也都有支援:

ENA driver is installed in the latest Amazon Machine Images (AMIs) for the following operating systems: Amazon Linux, Ubuntu 14.04 and 16.04, RHEL 7.4, SLES 12, Windows Server 2008R2, 2012, 2012R2 and 2016. ENA Linux driver source code is also available on Github.com for developers to integrate in their AMIs.

如果不在上面的,也可以透過 GitHub 上的 amzn/amzn-drivers (Official repository of the Elastic Network Adapter (ENA) network adapter for Linux and FreeBSD operating systems) 自己 porting... (如果你一定要想辦法用的話)

透過 AWS Budgets 管控 Reserved Instance 的使用率

現在可以透過 AWS Budgets 來看到 Reserved Instance 的使用率了:「Monitor your Reserved Instance utilization by receiving alerts via AWS Budgets」。

Starting today, customers can now monitor and receive alerts when their Reserved Instance (“RI”) utilization falls below the threshold they define.

算是個開頭,不過我更想請 AWS 分析有哪些機器是長年開著沒有 discount 的... 或者像是 GCP 那樣自動算 :o

Amazon EC2 推出新的 GPU 系列機器

這次 Amazon EC2 推出了 G3 instance:「New – Next-Generation GPU-Powered EC2 Instances (G3)」。

這次開放的只有這幾區,亞洲目前還沒有在內:

You can launch these instances today in the US East (Ohio), US East (Northern Virginia), US West (Oregon), US West (Northern California), AWS GovCloud (US), and EU (Ireland) Regions as On-Demand, Reserved Instances, Spot Instances, and Dedicated Hosts, with more Regions coming soon.

這次使用的 GPU 是 Nvidia 的 Tesla M60:

Today we are taking a step forward and launching the G3 instance type. Powered by NVIDIA Tesla M60 GPUs, these instances are available in three sizes (all VPC-only and EBS-only)[.]

G3 (M60) 應該會比 G2 (K520) 快,但未必會比 P2 (K80) 快,尤其是 double precision 的部份,可以參考「Nvidia Tesla」這邊的數據。所以還是得看應用程式才能決定要用 G3 還是 P2...

AWS Batch 在東京區可以用了

AWS Batch 支援東京區了:「AWS Batch is Now Available in Tokyo」。

總算是在東京出現了... 在 FAQ 裡面有提到:

AWS Batch uses Amazon ECS to execute containerized jobs and therefore requires the ECS Agent to be installed on compute resources within your AWS Batch Compute Environments. The ECS Agent is pre-installed in Managed Compute Environments.

開起來測一些東西看看...

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