Cloud disk

Cloud disk is a block storage service with low latency, persistence, high reliability and high elasticity provided by Baidu Intelligent Cloud for ECS BCC. The data in the cloud disk will be stored in the availability zone in the form of multiple copies redundancy to avoid the risk of a single point of failure of the data. At the same time, it supports elastic management of the cloud disk through online capacity expansion and online disk type change.

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product type
Product advantages
Product Functions
Application scenarios
Product Dynamics
Documentation and Tools
Related products

Latest activities

Annual special A 30% discount per year for cloud disk prepaid package
Function launch CDS supports dedicated clusters, and cloud disk resources support physical isolation
Function launch API supports snapshot cross region replication

Getting Started Guide

quick get start Cloud Disk CDS Disk Mount Operation Guide
quick get start Cloud Disk CDS Elastic Operation Guide
Selection Guide Refer to performance parameters to select cloud disk type

product type

Cloud Disk Type	Enhanced SSD	Universal SSD	High performance cloud disk	Universal HDD
Use Scenarios	Database scenarios applicable to medium and large core businesses, such as MySQL Relational databases such as SQLServer NoSQL database, large Oracle database system.	The use of high-performance SSD solid state disk is suitable for I/O-intensive applications, such as large OLTP services.	It is cost-effective and suitable for most high IO scenarios, such as small and medium-sized databases and core business test and development environments.	The price is low, but the throughput capacity is strong and the cost performance ratio is extremely high. It is applicable to scenarios that require throughput performance but are price sensitive.
Single disk capacity	50 GB ~ 32 TB	50 GB ~ 32 TB	5 GB ~ 32 TB	5 GB ~ 32 TB
Single disk random maximum IOPS	one hundred thousand	twenty-five thousand	five thousand	five hundred
Maximum throughput of a single disk	750 MBps	300 MBps	140 MBps	200 MBps
access delay	Less than 2ms	Less than 2ms	Less than 3ms	Less than 10ms
Data reliability	99.9999999%	99.9999999%	99.9999999%	99.9999999%
Price	￥ one /GB/month Buy Now	￥ zero point nine zero /GB/month Buy Now	￥ zero point three five /GB/month Buy Now	￥ zero point two five /GB/month Buy Now

Product advantages

High performance

The storage node and the ECS host use a 10 Gigabit network to meet high read and write throughput and high IOPS, and ensure the stability of read and write latency.

Stable and reliable

Distributed multi copy redundant storage technology and snapshot backup function ensure data availability and reliability.

Performance burst

Provide unique performance burst capability in China, IO performance can burst to the maximum performance of the same type, and smoothly cope with the IO pressure caused by business spikes.

Rich product forms

SSD, HDD and other cloud disk types can meet your various business needs. After purchase, disk types can be converted online to adapt to business changes.

Product Functions

See more features of the product

Billing management
Renew cloud disk
After expiration, the service will be stopped automatically. Automatically close and retain data within seven days after expiration, and send a renewal notice to the user. After renewal, the system will automatically resume the use of the original service.
Billing changes
The billing method supports changes between prepaid and postpaid.
Snapshot charge
Cloud disk snapshots are billed in a postpaid manner, and the snapshot data generated by CDS cloud disk is managed in the form of "snapshot chain".
Disk management
Create CDS Cloud Disk
You can create a CDS cloud disk while creating an ECS BCC, create a CDS cloud disk for an already created ECS BCC, or create a CDS cloud disk separately and attach it to a specified ECS.
Attach cloud disk
You can attach the created CDS cloud disk to the ECS BCC.
Disk encryption
You can encrypt the cloud disk when creating an ECS BCC or cloud disk CDS, and support encryption for custom images and system disks.
snapshot manager
Automatic disk snapshot
You can create automatic snapshots for CDS cloud disks. You only need to define the disk and time period for snapshot creation in advance, and the system will automatically implement snapshot operations for you.
Create a custom image
You can quickly create custom images for system disks.
Snapshot encryption
You can encrypt the cloud disk when creating an ECS BCC or cloud disk CDS. After encryption, the snapshot it creates will be encrypted automatically.

Application scenarios

Big data storage

File Services

Core business data storage

High IO requirements

Scenario Overview

CDS meets the massive storage needs of users' data of various forms, such as educational resources, medical data, audio and video, scientific research data, collected samples, and SaaS or portal data under massive users.

We can provide

At present, a single CDS instance supports a maximum capacity of 32 TB. Users can attach multiple CDS instances to the ECS according to the storage requirements to achieve massive data storage requirements.
Users do not need to prepay future capacity costs or commit to long-term use, but only pay for current capacity and performance, and can rapidly expand capacity at any time with business development.
A single disk can have up to 1 million random IOPS and 100 microseconds level delay performance.

Related products

ECS BCC

Product Dynamics

See more product updates

Function optimization
Support batch expansion of cloud disks on the console to achieve batch expansion 2021.04.01
New functions go online
GSCP is a new way to sell capacity. 2021.06.01
New functions go online
Enhanced SSD Phase I can support a single disk with a maximum throughput of 50000 IOPS and 350MB/s. 2021.12.01
Function optimization
API supports snapshot cross region replication. 2022.01.01
New functions go online
CDS supports private clusters, and cloud disk resources support physical isolation. 2022.11.01