Snapshot tree components

A snapshot tree contains the following volumes.

Volume type Volumes that can be used Description
Root Logical volume (LDEV)

Volume (L1 pair of the P-VOL) in the top layer of a snapshot tree.

The logical volume of the P-VOL contains DP-VOLs (V-VOL of which provisioning type is Dynamic Provisioning).

Node DP-VOL

Volumes located between the root volume and leaf volumes.

S-VOL of the root volume (or another node volume), and the P-VOL of a leaf volume (or another node volume).

Leaf DP-VOL

Volumes in the bottom layer of a snapshot tree.

S-VOL of the root volume or a node volume, which is not a P-VOL of any pair.

Parent Topic
  • Components of Thin Image

    Thin Image typically consists of several components, including pairs, groups, and software applications. Thin Image requires Dynamic Provisioning, which is used to access data for open-system servers such as UNIX and PC servers in a pool volume through a virtual volume.