Alibaba Cloud provides low-cost, high-reliability, and highly-availability storage services for a wide range of storage resources such as blocks, files, and objects. These services are applicable to a variety of scenarios, including data backup, archiving, and disaster recovery. This topic describes the scenarios, performance, security, operations, and cost models of various Alibaba Cloud storage services to help you select the storage service that best meets your business requirements.

OSS Object Storage Service (OSS) is a secure, cost-effective, and high-reliability cloud storage service provided by Alibaba Cloud. It enables you to store a large amount of data in the cloud. OSS provides scalable capacity and processing capability and multiple storage classes to cover a variety of data storage scenarios from hot data storage to cold data storage, which helps you minimize your storage costs.
Block Storage Elastic Block Storage (EBS) is a high-performance, low-latency block storage service for Alibaba Cloud Elastic Compute Service (ECS). It supports random read and write operations. You can use EBS as a physical disk. You can format an EBS device and create a file system on it.
Apsara File Storage NAS Apsara File Storage Network Attached Storage (NAS) is a cloud service that provides shared access, elastic scalability, high reliability, and high performance. To be more specific, Apsara File Storage NAS is a distributed file system that provides file storage for compute nodes, including ECS instances, Elastic High Performance Computing (E-HPC) nodes, and Container Service for Kubernetes (ACK) nodes. Apsara File Storage NAS is designed based on POSIX and compatible with native operating systems.
Apsara File Storage for HDFS Apsara File Storage for Hadoop file system (HDFS) is a file storage service for computing resources such as Alibaba Cloud ECS instances and Container Service for Kubernetes (ACK). Apsara File Storage for HDFS can meet the requirements of distributed computing business such as Hadoop on the performance, capacity, and reliability of distributed storage.
Tablestore Tablestore is a data storage service developed by Alibaba Cloud to store a large amount of structured data. You can use Tablestore to efficiently query and analyze data. Tablestore can store petabytes of data and provides tens of millions of transactions per second (TPS) within milliseconds of latency.
Cloud Storage Gateway Cloud Storage Gateway (CSG) is a gateway service that can be deployed at your data center and in Alibaba Cloud. CSG uses Alibaba Cloud OSS buckets as backend storage devices, and provides on-premises and in-cloud applications with standard file services over the Network File System (NFS) and Server Message Block (SMB) protocols. CSG also provides block storage services over the Internet Small Computer Systems Interface (iSCSI) protocol.