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BlkSnap

Veeam Open
Alliance Partner:

Open Source

Alliance Product:

blksnap

Program Category:

Veeam Open

Category Description:

Veeam's open-source projects and contributions to the open-source community

Article ID:

431

Veeam Product(s):
  • Veeam Agent for Linux
Features and Attributes:
  • Other
Publication date:

2022-06-02

Last modified date:

2022-06-03

Description

This kernel module implements snapshot and changed block tracking functionality. The module is developed to ensure the simple method of adding it to the upstream code. Therefore, the module is divided into two parts: bdevfilter and blksnap. bdevfilter provides the ability to intercept I/O units (bio). The main logic is concentrated in blksnap. The upstream variant does not contain a bdevfilter, but accesses the kernel to attach and detach the block device filter.

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