Naming convention of differential/incremental archives

Note: This structure only applies to the new VD archive format. It’s not valid for the old PBF archives.

The folder names of our incremental or differential backups follow a certain structure. The folders are stored as sub-folders of the base archive. The names are build according to the following structure:

Folder name of the increments: inc_X_Y_Z

X = level of the incremental chain (base is = 0)
Y = based on: increment number (sequential number Z)
Z = sequential number as identifier for the respective increment

Example:

inc_2_3_5 = 2 level => 2nd increment of a chain
                    => preceding increment was sequential number 3
                    => sequential number is 5: the 5th increment

Differential backup:

base archive (increment 0)
inc_1_0_1 =>  increment 1 - based on increment 0 - sequential number 1
inc_1_0_2 =>  increment 1 - based on increment 0 - sequential number 2
inc_1_0_3 =>  increment 1 - based on increment 0 - sequential number 3
inc_1_0_4 =>  increment 1 - based on increment 0 - sequential number 4
inc_1_0_5 =>  increment 1 - based on increment 0 - sequential number 5

Incremental chain:

base archive (increment 0)
inc_1_0_1 =>  increment 1 - based on increment 0 - sequential number 1
inc_2_1_2 =>  increment 2 - based on increment 1 - sequential number 2
inc_3_2_3 =>  increment 3 - based on increment 2 - sequential number 3
inc_4_3_4 =>  increment 4 - based on increment 3 - sequential number 4
inc_5_4_5 =>  increment 5 - based on increment 4 - sequential number 5

Know how: Paragon

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