Functions

Table 1 lists common SFS Turbo functions.

Before using SFS Turbo, you are advised to learn the basic concepts such as NFS and SMB in Basic Concepts to better understand the functions provided by SFS Turbo.

**Table 1** Common SFS Turbo functions
Function	Description	Region Availability
NFS protocol support	Network File System (NFS) is a distributed file system protocol that allows different computers and 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.	All
SMB protocol support	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 file system. Through it, clients can quickly read, write, and create files in the file system the same way as on local PCs. SMB is recommended for Windows clients.	You need to submit a service ticket to apply for using it.
File system management	File systems are containers that store files in SFS Turbo. You can create, view, and delete SFS Turbo file systems.	All
Permissions	SFS Turbo uses Identify and Access Management (IAM) for permissions management. You can control the read and write permissions of file systems by granting IAM users fine-grained SFS Turbo permissions using IAM custom policies.	All
File system backup	A backup is a complete copy of a file system at a specific time and it records all configuration data and service data at that time. If your file system is faulty or a logical error occurs in the data in the file system, you can use the backup data to restore the data quickly.	All
File system encryption	You can encrypt data on the newly created file systems if needed.	All
File system capacity expansion	You can expand the capacity of a file system if needed.	All
File system monitoring using Cloud Eye	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.	All
File system auditing using CTS	Cloud Trace Service (CTS) records operations performed on SFS Turbo file systems, facilitating query, audit, and backtracking.	All
Enterprise project	An enterprise project manages multiple resources by category. Resources and projects in different cloud service regions can be classified into one enterprise project. An enterprise allows you to classify resources based on departments or project groups and put relevant resources into the same enterprise project for management. Resources cannot be migrated between enterprise projects.	All
File system tagging	You can use tags to classify and identify file systems. If you add tags to a file system, service detail records (SDRs) generated for it will be labeled with these tags. You can classify SDRs by tag for cost analysis.	All
Active Directory configuration	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 the domain.	You need to submit a service ticket to apply for using it.
LDAP domain configuration	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 obtains the user and group ownerships.	All
Synchronous replication (cross-AZ DR)	Synchronous replication allows you to deploy file system disaster recovery (DR) 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.	You need to submit a service ticket to apply for using it.