- What's New
- Function Overview
- Service Overview
-
Billing
- Billing Overview
- Billing Modes
- Billed Items
- Billing Examples
- Billing Mode Changes
- Renewing Subscriptions
- Bills
- Arrears
- Billing Termination
- Cost Management
-
Billing FAQ
- How Do I Purchase SFS?
- How Do I Renew the Service?
- How Do I Check Whether the Subscriber Is in Arrears?
- Can I Purchase SFS Capacity-Oriented Resource Packages When I Still Have Valid Ones in Use?
- How Do I Check the Usage of an SFS Capacity-Oriented Resource Package?
- How Do I Adjust the Size of an SFS Capacity-Oriented Resource Package?
- Do SFS Capacity-Oriented and SFS Turbo Share One Resource Package?
- Getting Started
- User Guide
- Best Practices
-
API Reference
- Before You Start
- API Overview
- Calling APIs
- Calling General Purpose File System APIs
- Getting Started (SFS Capacity-Oriented)
- Getting Started with SFS Turbo
- Getting Started with General Purpose File System
-
SFS Capacity-Oriented APIs
- API Version Queries
- File Systems
- File System Access Rules
- Quota Management
- Expansion and Shrinking
-
Tag Management
- Adding a Tag to a Shared File System
- Deleting a Tag from a Shared File System
- Querying Tags of a Shared File System
- Querying Tags of All File Systems of a Tenant
- Batch Adding Tags to a Shared File System
- Batch Deleting Tags from a Shared File System
- Querying Shared File Systems by Tag
- Querying the Number of Shared File Systems by Tag
- AZ
-
SFS Turbo APIs
- Lifecycle Management
- Connection Management
- Tag Management
- Name Management
- File System Management
-
Storage Interworking Management
- Adding a Backend Target
- Querying Backend Targets
- Obtaining Details About a Backend Target
- Deleting a Backend Target
- Updating the Properties of a Storage Backend
- Updating the Auto Synchronization Policy of a Storage Backend
- Creating an Import or Export Task
- Querying Details About an Import or Export Task
- Listing Import and Export Tasks
- Deleting an Import or Export Task
- Updating a File System
- Directory Management
-
Permissions Management
- Creating a Permission Rule
- Querying Permission Rules of a File System
- Querying a Permission Rule of a File System
- Modifying a Permission Rule
- Deleting a Permissions Rule
- Creating and Binding the LDAP Configuration
- Querying the LDAP Configuration
- Modifying the LDAP Configuration
- Deleting the LDAP Configuration
- Task Management
- General Purpose File System APIs
- Permissions Policies and Supported Actions
- Common Parameters
- Appendix
- SDK Reference
-
Troubleshooting
- Mounting a File System Times Out
- Mounting a File System Fails
- File System Performance Is Poor
- Failed to Create an SFS Turbo File System
- A File System Is Automatically Disconnected from the Server
- A Server Fails to Access a File System
- The File System Is Abnormal
- Data Fails to Be Written into a File System Mounted to ECSs Running Different Types of Operating Systems
- Failed to Mount an NFS File System to a Windows IIS Server
- Writing to a File System Fails
- Error Message "wrong fs type, bad option" Is Displayed During File System Mounting
- Failed to Access the Shared Folder in Windows
-
FAQs
- Concepts
- Specifications
- Restrictions
- Networks
-
Billing
- How Do I Purchase SFS?
- How Do I Renew the Service?
- How Do I Check Whether the Subscriber Is in Arrears?
- Can I Purchase SFS Capacity-Oriented Resource Packages When I Still Have Valid Ones in Use?
- How Do I Check the Usage of an SFS Capacity-Oriented Resource Package?
- How Do I Adjust the Size of an SFS Capacity-Oriented Resource Package?
- Do SFS Capacity-Oriented and SFS Turbo Share One Resource Package?
-
Others
- How Do I Access a File System from a Server?
- How Do I Check Whether a File System on a Linux Server Is Available?
- What Resources Does SFS Occupy?
- Why Is the Capacity Displayed as 10P After I Mount My SFS Capacity-Oriented File System?
- Why the Capacity Is Displayed as 250TB After I Mount My General Purpose File System?
- How Can I Migrate Data Between SFS and OBS?
- Can a File System Be Accessed Across Multiple AZs?
- Can I Upgrade an SFS Capacity-Oriented File System to an SFS Turbo File System?
- Can I Upgrade an SFS Turbo File System from Standard to Standard-Enhanced?
- How Can I Migrate Data Between SFS and EVS?
- Can I Directly Access SFS from On-premises Devices?
- How Do I Delete .nfs Files?
- Why My File System Used Space Increases After I Migrate from SFS Capacity-Oriented to SFS Turbo?
- How Can I Improve the Copy and Delete Efficiency with an SFS Turbo File System?
- How Do Second- and Third-level Directory Permissions of an SFS Turbo File System Be Inherited?
- How Do I Deploy SFS Turbo on CCE?
- Videos
-
More Documents
- User Guide (ME-Abu Dhabi Region)
- API Reference (ME-Abu Dhabi Region)
-
User Guide (Paris Region)
- Introduction
- Getting Started
- Management
- Typical Applications
-
Troubleshooting
- Mounting a File System Times Out
- Mounting a File System Fails
- Failed to Create an SFS Turbo File System
- A File System Is Automatically Disconnected from the Server
- A Server Fails to Access a File System
- The File System Is Abnormal
- Data Fails to Be Written into a File System Mounted to ECSs Running Different Types of Operating Systems
- Failed to Mount an NFS File System to a Windows IIS Server
- Writing to a File System Fails
- Error Message "wrong fs type, bad option" Is Displayed During File System Mounting
- Failed to Access the Shared Folder in Windows
-
FAQs
- Concepts
- Specifications
- Restrictions
- Networks
-
Others
- How Do I Access a File System from a Server?
- How Do I Check Whether a File System on a Linux Server Is Available?
- What Resources Does SFS Occupy?
- Why Is the Capacity Displayed as 10P After I Mount My SFS Capacity-Oriented File System?
- Can a File System Be Accessed Across Multiple AZs?
- How Can I Migrate Data Between SFS and EVS?
- Can I Directly Access SFS from On-premises Devices?
- How Do I Delete .nfs Files?
- Why My File System Used Space Increases After I Migrate from SFS Capacity-Oriented to SFS Turbo?
- How Can I Improve the Copy and Delete Efficiency with an SFS Turbo File System?
- How Do Second- and Third-level Directory Permissions of an SFS Turbo File System Be Inherited?
- Other Operations
- Change History
- API Reference (Paris Region)
- User Guide (Kuala Lumpur Region)
- API Reference (Kuala Lumpur Region)
- Glossary
- General Reference
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Permissions
If you need to assign different permissions to employees in your enterprise to access your SFS resources on the cloud, Identity and Access Management (IAM) is a good choice for fine-grained permissions management. IAM provides identity authentication, permissions management, and access control, helping you to securely access your cloud resources.
With IAM, you can use your cloud account to create IAM users, and assign permissions to the users to control their access to specific resources. For example, some software developers in your enterprise need to use SFS resources but should not be allowed to delete the resources or perform any other high-risk operations. In this scenario, you can create IAM users for the software developers and grant them only the permissions required for using SFS resources.
If your cloud account does not require individual IAM users for permissions management, skip this section.
IAM can be used free of charge. You pay only for the resources in your account. For more information about IAM, see Identity and Access Management User Guide.
SFS Permissions
By default, new IAM users do not have permissions assigned. You need to add a user to one or more groups, and attach permissions policies or roles to these groups. Users inherit permissions from the groups to which they are added and can perform specified operations on cloud services based on the permissions.
SFS is a project-level service deployed and accessed in specific physical regions. To assign SFS permissions to a user group, specify the scope as region-specific projects and select projects for the permissions to take effect. If All projects is selected, the permissions will take effect for the user group in all region-specific projects. When accessing SFS, the users need to switch to a region where they have been authorized to use this service.
You can grant users permissions by using roles and policies.
- Roles: A type of coarse-grained authorization mechanism that defines permissions related to user responsibilities. This mechanism provides only a limited number of service-level roles for authorization. When using roles to grant permissions, you need to also assign other roles on which the permissions depend to take effect. However, roles are not an ideal choice for fine-grained authorization and secure access control.
- Policies: A type of fine-grained authorization mechanism that defines permissions required to perform operations on specific cloud resources under certain conditions. This mechanism allows for more flexible policy-based authorization, meeting requirements for secure access control. For example, you can grant ECS users only the permissions for managing a certain type of ECSs. Most policies define permissions based on APIs. For the API actions supported by SFS, see section "Permissions Policies and Supported Actions" in the Scalable File Service API Reference.
Role/Policy Name |
Description |
Type |
Dependency |
---|---|---|---|
SFS FullAccess |
Administrator permissions for SFS. Users granted these permissions can perform all operations on file systems. |
System-defined policy |
None |
SFS ReadOnlyAccess |
Read-only permissions. Users granted these permissions can only view file system data. |
System-defined policy |
None |
SFS Administrator |
Permissions include:
|
System-defined role |
Tenant Guest role needs to be assigned in the same project. |
Role/Policy Name |
Description |
Type |
Dependency |
---|---|---|---|
SFS Turbo FullAccess |
Administrator permissions for SFS Turbo. Users granted these permissions can perform all operations on SFS Turbo file systems. |
System-defined policy |
None |
SFS Turbo ReadOnlyAccess |
Read-only permissions for SFS Turbo. Users granted these permissions can only view SFS Turbo file system data. |
System-defined policy |
None |
Table 3 lists the common operations supported by each system-defined policy or role of SFS. Select the policies or roles as required.
Operation |
SFS FullAccess |
SFS ReadOnlyAccess |
SFS Administrator |
---|---|---|---|
Creating a file system |
√ |
x |
√ |
Querying a file system |
√ |
√ |
√ |
Modifying a file system |
√ |
x |
√ |
Deleting a file system |
√ |
x |
√ |
Adding an access rule of a file system (Adding a VPC or adding an authorized address to a file system) |
√ |
x |
√ |
Modifying an access rule of a file system (Modifying the VPC or authorized address of a file system). |
√ |
x |
√ |
Deleting an access rule of a file system (Deleting the VPC or authorized address of a file system). |
√ |
x |
√ |
Expanding the capacity of a file system |
√ |
x |
√ |
Shrinking the capacity of a file system |
√ |
x |
√ |
Creating file system tags |
√ |
x |
√ |
Querying file system tags |
√ |
√ |
√ |
Deleting file system tags |
√ |
x |
√ |
Querying availability zones |
√ |
√ |
√ |
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