File Storage NAS (NAS) provides multiple types of file systems. You can select one or more types based on your workloads. This helps you ensure the reliability, security, and continuity of your workloads.
Overview of file system selection
When you select file systems, take note of the following factors:
Performance
We recommend that you select an Extreme NAS file system if a large number of read and write requests need to be processed and low response latency is required.
We recommend that you select a CPFS for LINGJUN file system if a large number of files need to be processed and high throughput is required.
Security and stability
We recommend that you select a General-purpose NAS file system if your business data requires high stability, access control, and data encryption.
We recommend that you select a General-purpose NAS file system or an Extreme NAS file system if your business data requires backup.
Capacity and elasticity
We recommend that you select a Capacity NAS file system if your business data requires a large storage capacity.
We recommend that you select a General-purpose NAS file system if your business data requires frequent elastic scale-out and scale-in.
The prices vary with the types and storage classes of file systems. We recommend that you select file systems based on your business requirements and cost budget to prevent resource waste or excess budget.
The storage class of a file system cannot be changed. For more information about the limits on file systems, see Limits.
File system selection
Selection reference | General-purpose NAS file systems | Extreme NAS file systems | CPFS for LINGJUN file systems | |||||
Capacity | Premium | Performance | 400 MB/s | |||||
Scenario | Cost-sensitive file sharing workloads that require moderate latency, such as database backup, log storage, Windows user directory, and Linux home directory. | Latency-sensitive file sharing workloads that require low latency, such as container data persistence, AI training data storage, manufacturing simulation, and genetic computing. | Latency-sensitive file sharing workloads that require low latency, such as Linux or Windows applications for enterprises, container persistent volumes (PVs), web content management, and genetic computing. | Latency-sensitive Linux applications for enterprises, development and test environments for continuous integration and continuous deployment (CI/CD), high-performance web services, online education services, and online gaming services. | Intelligent computing scenarios such as AI generated content (AIGC) and autonomous driving. A CPFS for LINGJUN file system can be used only with LINGJUN resources, general computing resources, and single-tenant LINGJUN resources. It cannot be accessed by Elastic Compute Service (ECS) instances. | |||
Feature | Protocols and clients |
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Storage capacity | 0~10 PiB | 0~1 PiB | 0~1 PiB | 100 GiB~256 TiB | 10 TiB~1 PiB | |||
Maximum number of files | 1 billion | 1 billion | 1 billion | 0.5 billion | 10 billion | |||
Performance | Average latency for reading 4 KiB files from a single-socket server | 10 ms | 2 ms | 2 ms |
| 0.25 ms | ||
Average latency for writing 4 KiB files to a single-socket server | 10ms | 2 ms | 2 ms |
| 0.6 ms | |||
Maximum throughput |
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The throughput can be up to 2 TB/s. If you want to increase the throughput, submit a ticket. | |||
Maximum input/output operations per second (IOPS) | 15,000 | 30,000 | 30,000 | 200,000 |
The IOPS can be up to 30,000,000. If you want to increase the IOPS, submit a ticket. | |||
Scalability | Elastic scale-in | Supported | Supported | Supported | Not supported | Not supported | ||
Elastic scale-out | Supported | Supported | Supported | Supported | Supported | |||
Scaling method | Auto scaling | Auto scaling | Auto scaling | Manual scaling | Manual scaling | |||
Scaling step size | 4 KiB | 4 KiB | 4 KiB | 1 GiB | 10 TiB You can create a CPFS for LINGJUN file system of up to 5 PiB in size. To create such a CPFS for LINGJUN file system, submit a ticket. | |||
Security | Server-side encryption | Supported | Supported | Supported | Supported | Not supported | ||
Encryption in transit | Supported | Supported | Supported | Not supported | Not supported | |||
AD domain control (SMB) | Supported | Supported | Supported | Not supported | Not supported | |||
ACL-based access control | Supported | Supported | Supported | Not supported | Not supported | |||
Stability | Quota | NFS | Supported | Supported | Supported | Not supported | Not supported | |
SMB | Supported | Supported | Supported | |||||
Subdirectory-based mounting | NFS | Supported | Supported | Supported | Not supported | Not supported | ||
SMB | Not supported | Not supported | Not supported | Not supported | ||||
Recycle bin | Supported | Supported | Supported | Not supported | Not supported | |||
Lifecycle management | Supported | Supported | Supported | Not supported | Not supported | |||
Multi-zone high availability or active-active disaster recovery | Not supported | Not supported | Not supported | Not supported | Not supported | |||
Backup | Supported | Supported | Supported | Supported | Not supported | |||
Snapshots | Not supported | Not supported | Not supported |
| Not supported | |||
Cost-effectiveness | Pay-as-you-go (USD per GiB-month) | 0.06 | 0.13 | 0.30 |
| 0.244 | ||
Resource plan | Supported | Supported | Supported | Supported | Not supported | |||
SCU | Supported | Not supported | Supported | Not supported | Not supported | |||
Storage plan | No longer available for purchase | Not supported | No longer available for purchase | Not supported | Not supported | |||
Subscription | Not supported | Not supported | Not supported | No longer available for purchase | Not supported | |||
The pay-as-you-go prices in the preceding table are the reference prices on July 18, 2024 in regions in the Chinese mainland. The actual prices in specific regions are subject to the data published on the File Storage NAS Pricing page. For more information about the billing of NAS file systems, see File Storage NAS Pricing. For more information about the billing of CPFS file systems, see Cloud Parallel File Storage Pricing.