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Instance specification families D1 and d1ne FAQ

What are D1 and d1ne instance specification families?

D1 is the big data instance specification family.

The full name of d1ne is big data network enhanced instance specification family.

D1PowerD1ne is a case specification family designed for Hadoop distributed computing, massive log processing, large-scale data warehouse and other business scenarios, to solve the cloud computing and storage problems of massive business data in big data era. For detailed example specifications, see ECS product introduction example specification family.

Which industry customers and business scenarios are D1 and d1ne suitable for?

It is suitable for Internet industry, financial industry and other industry customers with big data computing and storage analysis needs to carry out massive data storage and offline computing business scenarios, and fully meet the instance storage performance, capacity and private network bandwidth requirements of distributed computing business types represented by Hadoop.

At the same time, combined with the highly available architecture design of distributed computing services represented by Hadoop, D1 and d1ne specification family instances adopt the design of local storage, which achieves a total cost of ownership similar to that of offline IDC self-built Hadoop clusters on the premise of ensuring massive storage space and high storage performance.

What are the characteristics of D1 and d1ne instance specification families?

Based on the enterprise architecture, it provides stable computing power and ensures the efficient processing efficiency of computing jobs.

Higher network performance (including maximum private network bandwidth and maximum small packet forwarding rate of a single instance, as described in the instance specification family for details) to meet the data exchange requirements between instances during business peak periods (such as Shuffle process under MapReduce computing framework).

Sequential read and write performance of 190 MB/s per disk (the disk needs to be preheated to achieve the highest performance when creating an instance for the first time), and the maximum throughput capacity of a single instance is 5 GB/s, which shortens the read and write time of HDFS files.

The price of local storage is 97% lower than that of SSD cloud storage, which greatly reduces the construction cost of Hadoop cluster.

What are the instance specifications for D1 and d1ne?

For more information on the case specification, please see the instance specification family of the ECS product introduction.

How do I buy a d1/d1ne local disk?

You cannot purchase a local disk separately, you can only purchase a local disk when you create a D1 or d1ne instance. The number and capacity of local disks are determined by the instance specification you choose. For more information, please refer to the documentation instance specification family.

What are the considerations when storing data on D1 or d1ne local disks?

Warning:

The data disks of D1 and d1ne instances are local disks, and there is a risk of data loss (such as when the host machine goes down). If your application cannot achieve the architecture of data reliability, we strongly recommend that you use cloud disks to build your instance.

The operation instance with local disk and the data retention relationship are shown in the following table.

Can SSD cloud storage be mounted on D1 and d1ne? Can the mounted cloud disk be expanded?

D1 and d1ne can mount SSD cloud disks. The mounted cloud disk supports capacity expansion. For more information, please see the expansion cloud disk.

Do the local disks of D1 and d1ne support snapshots?

Snapshots are not currently supported. Therefore, if you need to create a full mirror for D1 and d1ne instances, it is recommended to create it by combining "system disk snapshot" and "data disk (cloud disk only) snapshot".

Currently, you cannot create a full image based on the instance ID, so you cannot use a custom image to create a D1 or d1ne instance.

Do D1 and d1ne support adaptation and downtime migration?

Neither D1 nor d1ne supports configuration changes.

Currently, downtime migration is not supported. Please pay attention to the notice on the official website for subsequent support.

Which regions provide D1 or d1ne instances?

You can currently purchase D1 or d1ne instances in the following regions and availability zones: North China 1 (availability Zone C), North China 2 (availability Zone D, E), North China 3 (availability Zone A), East China 1 (availability Zone B), East China 2 (availability Zone B), South China 1 (availability Zone C), Hong Kong (availability Zone B, C), Southeast Asia-Pacific 1 (availability Zone A, B), Eastern United States 1 (availability Zone A), Western United States 1 (availability Zone A), Central Europe 1 (availability Zone A), and Southeast Asia Pacific 2 (availability Zone A). Click here to buy, other regions will be online one after another, please pay attention to the official website notice.

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