This topic describes how to migrate data from an Apsara File Storage NAS (NAS) file system to another storage system or from another storage system to a NAS file system.
Migrate data from an on-premises storage system to a NAS file system
To migrate data from an on-premises storage system to a NAS file system, perform the following operations:
Migrate data between a NAS file system and an OSS bucket
We recommend that you use the following methods to migrate data between a NAS file system and an Object Storage Service (OSS) bucket:
Use the ossutil tool of OSS. The ossutil tool has the following benefits:
Provides a wide range of easy-to-use and powerful commands for you to manage objects and buckets.
Supports concurrent uploads and resumable uploads.
Allows you to upload and download directories and folders.
For more information, see Migrate data by using ossutil.
Use Data Transport.
Data Transport is a tunnel between different storage services of Alibaba Cloud. Data Transport allows you to migrate data between OSS and NAS without the need to deploy a migration tool. For more information, see Migrate data by using Data Transport.
Migrate data between NAS file systems
We recommend that you use the following methods to migrate data between NAS file systems:
If the source and destination NAS file systems belong to different regions, virtual private clouds (VPCs), or accounts, you must first connect the VPCs of the two file systems.
For more information about how to connect VPCs in the same region, see Use PrivateLink to mount a NAS file system across VPCs in the same region or Use CEN to mount a NAS file system across VPCs in the same region.
For more information about how to connect VPCs across accounts and regions, see Use CEN to mount a NAS file system across accounts and regions.
If you use a Network File System (NFS) file system, we recommend that you use the rsync tool to migrate data. The rsync tool has the following benefits:
After a file is uploaded or downloaded, the metadata of the file remains unchanged, including the owner and permission information.
Incremental data can be synchronized.
For more information, see Migrate data by using the rsync command-line tool.
If you use a Server Message Block (SMB) file system, we recommend that you use the Robocopy tool of Windows to migrate data. The Robocopy tool supports features such as multi-thread concurrent migration and resumable upload. You can use scripts to accelerate data migration. For more information, see Migrate data by using the Robocopy tool.
You can use Data Transport to migrate data. For more information, see Migrate data by using Data Transport.
Migrate data from a NAS file system to an on-premises storage system
If you want to migrate data from a NAS file system to an on-premises storage system, you can use the rsync tool or other tools to migrate the data. For more information, see Migrate data from a NAS file system to an on-premises storage system.