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). |
|
Secondary |
Thin Image V-VOL (V-VOL of which provisioning type is Snapshot) |
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. |
|
|
Pool |
Logical volume (LDEV) |
Volumes contained in a Thin Image pool. Differential data of a P-VOL is stored in a pool volume as snapshot data. |