File Naming Conventions

The ShadowProtect naming convention identifies the file and its relationship to, and dependencies on, other backup image files. The syntax is:

<volume-identifier>-b_<base-seq>-d<diff-seq>-i<inc-seq>.<extension>_

volume-identifier: Identifies the volume that the backup image file represents.

base-seq: The base image file sequence number. This either identifies:

• The sequence number of this file or
• The base image file upon which this file is dependent.

diff-seq: The Differential backup sequence number. This either identifies:

• The sequence number of this file or
• The differential image file upon which this file is dependent.

inc-seq: The Incremental backup sequence number. This either identifies:

• The sequence number of this file or
• The incremental image file upon which this file is dependent.

extension: The file extension, which identifies if the file is a Full, Incremental, or Spanned backup image file.

File Type Extension	Description
C_Vol-b001.spf	Full image of the C: volume.
C_Vol-b001-d001-i000.spi* or C_Vol-b001-d001.spi	Differential image of the C: volume with a dependency on the full backup image file C_Vol-b001.spf
C_Vol-b001-d000-i000.spi* or C_Vol-b001-i001.spi	Incremental image of the C: volume with a dependency on the full backup image file C_Vol-b001.spf
C_Vol-b001-d001-i001.spi	Incremental image of the C: volume with a dependency on the differential backup image file C_Vol-b001-d001.i000 which in turn has a dependency on C_Vol-b001.spf.

*Backup image file names that include the “-d000” or “-i000” segment identifier indicate that the backup image file does not rely on any other differential or incremental backup image file.