Alibaba Cloud File Storage NAS and Cloud Parallel File Storage (CPFS) offer various types of file systems. You can select one or more file systems based on your workloads to provide the necessary reliability, security, and continuity.
Selection overview
When you select an Alibaba Cloud file storage service, consider the following key factors:
Performance
If your application handles a high volume of read and write requests and requires low latency, select an Extreme NAS file system.
If your application processes many files and requires high throughput, select a CPFS or CPFS for Lingjun file system.
Security and stability
If your data requires high stability, access control, and data encryption, select a General-purpose NAS file system.
If your data requires backups, select a General-purpose NAS file system or an Extreme NAS file system.
Capacity and scalability
If your data requires a large storage capacity, select a General-purpose capacity NAS file system.
If your data requires frequent elastic scale-out and scale-in, select a General-purpose NAS file system.
Prices vary based on the file system type and specifications. Select a file storage service that meets your needs and budget to avoid wasting resources or exceeding your budget.
The storage class of a file system cannot be changed. For more information about the limits on file systems, see Limits for File Storage NAS and Limits for Cloud Parallel File Storage.
File system selection
Selection reference | General-purpose NAS | Extreme NAS | CPFS | CPFS for Lingjun | ||||||
Storage-optimized | Advanced | Performance | 100 MB/s | 200 MB/s | 400 MB/s | |||||
Scenarios | Cost-sensitive file sharing workloads that have low requirements for response latency, such as database backups, log storage, Windows user directories, and Linux home directories. | Latency-sensitive file sharing workloads that require low response latency, such as data persistence for containers, AI training data storage, industrial simulation, and genetic computing. | Latency-sensitive file sharing workloads that require low response latency, such as Linux or Windows enterprise applications, container PersistentVolumes (PVs), web content management, and genetic computing. | Latency-sensitive Linux enterprise applications, CI/CD staging environments, high-performance web services, online education services, and online game services. | I/O-intensive workloads that require high throughput, high input/output operations per second (IOPS), and massive numbers of files. Examples include high-performance computing (HPC), AI training, autonomous driving, genetic computing, film and television rendering, EDA simulation, oil and gas exploration, and weather analysis. | It is suitable for intelligent computing scenarios such as AIGC and autonomous driving. Currently, it can only be used with Container Compute Service (ACS), PAI Lingjun resources, PAI general computing resources, and PAI Lingjun resources (single-tenant). Access from ECS instances is not supported. | ||||
Features | Protocols & clients |
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Storage capacity | 0 to 10 PiB | 0 to 1 PiB | 0 to 1 PiB | 100 GiB to 256 TiB | 3.6 TiB to 1 PiB | 3.6 TiB to 1 PiB | 10 TiB to 1 PiB | |||
Maximum number of files | 1 billion | 1 billion | 1 billion | 500 million |
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| 10 billion | |||
Performance | Average 4 KB single-stream read latency | 10 ms | 2 ms | 2 ms |
| 0.6 ms | 0.4 ms | 0.25 ms | ||
Average 4 KB single-stream write latency | 10 ms | 2 ms | 2 ms |
| 0.8 ms | 0.6 ms | 0.6 ms | |||
Throughput (peak) |
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| Read + Write 20 GB/s To increase the throughput capacity, submit a ticket. |
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Maximum IOPS | 15,000 | 30,000 | 30,000 | 200,000 | 1,500,000 | 2,800,000 |
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Scalability | Scale-in | Support | Supported | Supported | Not supported | Not supported | Not supported | Not supported | ||
Scale-out | Support | Support | Supported | Supported | Support | Support | Support | |||
Scaling method | Automatic scaling | Automatic scaling | Automatic scaling | Manual scaling | Manual scaling | Manual scaling | Manual scaling | |||
Scaling step size | 4 KiB | 4 KiB | 4 KiB | 1 GiB |
| 10 TiB You can create a file system of up to 5 PiB. If needed, submit a ticket. | ||||
Security | Server-side encryption | Support | Support | Supported | Support | Supported | Support | Not supported | ||
Encryption in transit | Support | Help and support | Supported | Not supported | Supported | Support | Not supported | |||
AD domain control (SMB) | Support | Support | Supported | Not supported | Not supported | Not supported | Not supported | |||
ACL-based access control | Support | Support | Support | Not supported | Support | Support | Not supported | |||
Stability | Quotas | NFS | Support | Supported | Supported | Not supported | Not supported | Not supported | Not supported | |
SMB | Supported | Support | Supported | |||||||
Subdirectory mounting | NFS | Support | Support | Support | Not supported | Support | Support | Not supported | ||
SMB | Not supported | Not supported | Not supported | Not supported | Not supported | Not supported | Not supported | |||
Recycle bin | Supported | Support | Supported | Not supported | Not supported | Not supported | Not supported | |||
Lifecycle | Supported | Support | Supported | Not supported | Not supported | Not supported | Not supported | |||
Backups | Support | Support | Support | Support | Supported features | Support | Support | |||
Snapshots | Not supported | Not supported | Not supported |
| Not supported | Not supported | Not supported | |||
Locally redundant storage | Support | Support | Help and Support | Support | Supported | Support | Supported | |||
Zone-redundant storage (Multi-AZ) | Not supported | Not supported | Not supported | Not supported | Support | Not supported | Not supported | |||
Cost | Pay-as-you-go (CNY/GiB/month) | 0.35 | 0.85 | 1.85 | 1.8 | 0.83 | 1.4 | 1.6 | ||
Resource plans | Support | Support | Support | Supported | Help and Support | Support | Supported | |||
SCU | Support | Not supported | Support | Not supported | Not supported | Not supported | Not supported | |||
storage plan | New purchases not supported | Not supported | New purchases not supported | Not supported | Not supported | Not supported | Not supported | |||
Subscription | Not supported | Not supported | Not supported | New purchases not supported | New purchases not supported | New purchases not supported | Not supported | |||
The pay-as-you-go prices in the table are for reference only and reflect pricing for the Chinese mainland region as of July 18, 2024. For the latest prices in the Chinese mainland and other regions, see the File Storage Pricing page.