Tool Introduction

Overview

US3FS mounts a US3 storage space (Bucket) to a local mount point on Linux/Windows. After mounting, you can access files in the bucket like local files.

Version and Runtime Environment

Software Versions

Current versions:

• Linux: v2.0.3
• Windows: v1.6.8

Supported Environments

• Linux
  • CentOS 7.0 or later (check via cat /etc/redhat-release)
  • Ubuntu 16.04 or later (check via cat /etc/issue)
• Windows
  • WinFsp service enabled

Key Features

• Supports most POSIX filesystem features: read, sequential write, permissions, UID/GID.
• Uses US3 multipart upload for large files.
• Supports ETag and MD5 validation to ensure data consistency.

Limitations

• Does not support reading ARCHIVE storage class objects.
• Does not support random write / append write.
• rename is not atomic.
• Does not support hard/soft links.
• When multiple clients mount the same bucket, users must manage data consistency themselves.