Dell PowerFlex 4.6.x Technical Overview

Volume trees (vTrees)

A vTree consists of the root volume and all of its descendant volumes and snapshots.

A vTree is the structure comprised of a volume and the snapshots resulting from that volume. It is a tree spanning from the source volume at its root, whose descendants are either snapshots of the volume itself or snapshots of a snapshot. In the vTree diagram, S₁₁₁ and S₁₁₂ are snapshots of V₁. S₁₂₁ is a snapshot of snapshot S₁₁₁. Together, V₁ and S_1xy are the vTree of V₁.