Volume components

To create Thin Image pairs, the following volumes are required.

Volume type Volumes that can be used Description
Primary Logical volume (LDEV) Logical volume of a P-VOL contains DP-VOLs (V-VOLs of which provisioning type is Dynamic Provisioning in HDvM - SN, or V-VOL created by raidcom add ldev -pool in CCI).
Secondary Thin Image V-VOL (V-VOL of which provisioning type is Snapshot in HDvM - SN, or V-VOL created by raidcom add ldev -pool snap in CCI)

Use this volume to create snapshot pairs. Cannot be used for cascaded or cloned pairs.

This volume is required to create a pair with the S-VOL specified.

DP-VOL

Use this volume to create cascaded or cloned pairs.

This volume is required to create a pair with the S-VOL specified. Cloned pairs must be created with the S-VOL specified.

When a DP-VOL is used as an S-VOL, you must specify a cascaded or cloned pair.

Pool Logical volume (LDEV) Volumes that configure a pool which stores snapshot data. Differential data of a P-VOL is stored in a pool volume as snapshot data.
Parent Topic
  • Components of Thin Image

    Thin Image operations involve 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.