Functions
This section describes main functions of SFS. You can check if a certain function is available in a region on the console.
NFS Protocol
SFS Capacity-Oriented, General Purpose File System, and SFS Turbo all support the NFS protocol.
Network File System (NFS) is a distributed file system protocol that allows different computers and operating systems (OSs) to share data over a network. After the NFS client is installed on each ECS, you can mount the file system to implement file sharing between ECSs. NFS is recommended for Linux clients. For more information, see Mounting an NFS File System to ECSs (Linux).
SMB Protocol
SFS Turbo supports the SMB protocol.
Server Message Block (SMB) is a protocol used for network file access. Using SMB, network files can be shared between Windows hosts. It enables Windows clients to identify and access shared resources provided by the storage system. Through it, clients can read, write, and create files in the file system the same way as on local PCs. SMB is recommended for Windows clients. For more information, see Mounting an SFS Turbo File System to Windows ECSs. Submit a service ticket to apply for using this protocol.
CIFS Protocol
SFS Capacity-Oriented supports the CIFS protocol.
Common Internet File System (CIFS) is a protocol used for network file sharing. Using CIFS, network files can be shared between Windows hosts. CIFS is recommended for Windows clients. For more information, see Mounting a CIFS SFS Capacity-Oriented File System to ECSs (Windows).
File System Management
SFS Capacity-Oriented, General Purpose File System, and SFS Turbo all support file system management.
File systems are containers that store files in SFS. You can view and delete SFS file systems. For more information, see File System Management.
Multi-VPC Access
SFS Capacity-Oriented, General Purpose File System, and SFS Turbo all support multi-VPC access.
You can configure multiple VPCs for a file system so that ECSs in different VPCs can share the same file system, as long as the VPCs that the ECSs belong to are added as authorized VPCs of the file system or the ECSs are added as authorized addresses of the VPCs. For more information, see Configuring Multi-Account Access.
Multi-Account Access
SFS Capacity-Oriented supports multi-account access.
As long as the VPCs used by other accounts are added as authorized VPCs of a file system and IP addresses or IP address ranges of ECSs are added as authorized addresses of the VPCs, ECSs in different VPCs and of different accounts can share the same file system. For more information, see Configuring Multi-Account Access.
Permissions Management
SFS Capacity-Oriented, General Purpose File System, and SFS Turbo all support permissions management.
SFS uses IAM for permissions management. You can control the read and write permissions of file systems by granting IAM users fine-grained SFS permissions using IAM custom policies. For more information, see Permissions.
Backup
SFS Turbo supports file system backup.
A backup is a complete copy of a file system at a specific time. It records all configuration data and service data at that time. If your file system is faulty or a logical error occurs on data in the file system, you can use a backup to quickly restore data. For more information, see Backup.
Encryption
SFS Capacity-Oriented and SFS Turbo support file system encryption.
SFS enables you to encrypt data on newly created file systems as required. For more information, see File System Encryption.
Capacity Adjustment
SFS Capacity-Oriented and SFS Turbo support capacity adjustment.
You can expand or reduce the capacity of a file system if needed. For more information, see File System Resizing.
Active Directory Domain
SFS Turbo supports AD domains.
Active Directory Domain Services (AD DS) is a directory service that provides unified identity and permissions management through domain networks. After adding an SFS Turbo file system to an AD domain, you can authenticate user identities and manage permissions by file in that domain. For more information, see Configuring an AD Domain. Submit a service ticket to apply for using this function.
LDAP Domain
SFS Turbo supports LDAP domains.
Lightweight Directory Access Protocol (LDAP) is a standard protocol for interacting with directory servers. An LDAP server can centrally manage the ownerships of users and groups. After you bind your file system to an LDAP server, when a user accesses a file in the file system, SFS Turbo will access your LDAP server for user authentication and obtain the user and group ownerships. For more information, see Configuring an LDAP Domain.
Synchronous Replication (Cross-AZ DR)
SFS Turbo supports cross-AZ synchronous replication DR.
Synchronous replication allows you to deploy file systems across AZs. It sets up standby servers and data remotely and ensures crash consistency for data. If your active file system fails due to force majeure (tsunamis, fires, earthquakes, or other natural disasters) or device faults (software or hardware damages), the standby file system in the standby AZ can take over services. After the active AZ recovers, you can switch back to the active file system. Submit a service ticket to apply for using this function.
Monitoring
SFS Capacity-Oriented, General Purpose File System, and SFS Turbo all support monitoring.
Cloud Eye is a multi-dimensional resource monitoring service. With Cloud Eye, you can view the file system usage and service running status, and respond to exceptions in a timely manner. For more information, see Monitoring.
Auditing
SFS Capacity-Oriented and SFS Turbo support auditing.
Cloud Trace Service (CTS) records operations of SFS resources, facilitating query, audit, and backtracking. For more information, see Supported SFS Operations.
Replicating Settings of Existing File Systems
General Purpose File System supports the replication of existing file system settings.
SFS allows you to replicate settings from an existing file system when creating a new file system. The following settings can be replicated: region, AZ, protocol, authorization, and tags.
Enterprise Project
SFS Capacity-Oriented, General Purpose File System, and SFS Turbo all support enterprise projects.
An enterprise project manages multiple resources by category. Resources and projects in different cloud service regions can be classified into one enterprise project. For example, an enterprise can classify resources based on departments or project groups and then put relevant resources into the same enterprise project for management. Resources cannot be migrated between enterprise projects. For more information, see Project and Enterprise Project.
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