Managing Thin Image Pairs

Parent Topic

• Thin Image

  The high-speed, nondisruptive snapshot technology of Thin Image rapidly creates up to 1,024 point in-time copies of mission-critical information within the storage system or virtualized storage pool without impacting host service or performance levels. Because snapshots store only the changed data, the volume of storage capacity required for each snapshot copy is substantially smaller than the source volume, providing significant savings over full-volume cloning methods. Cascaded snapshot configuration and cloning enables creation of snapshot trees and full-copy clones from snapshots using Thin Image.

Child Topics

• Thin Image pair tasks

  You can perform the following tasks on Thin Image pairs.

• Checking Thin Image pair status

  Each Thin Image pair task requires a pair to have a specific status.

• Reloading Thin Image configuration information

  After creating a Thin Image pair, you can reload the configuration information if data shown in windows are different.

• Workflow for creating and managing Thin Image pairs

  Use this workflow to create and manage a Thin Image pair.

• Workflow for creating Thin Image pairs using Device Manager - Storage Navigator
• Creating Thin Image pairs using Device Manager - Storage Navigator
• Example of creating complex Thin Image pairs
• Pair operations for each consistency group
• Splitting Thin Image pairs to store snapshot data

  This topic explains how to split pairs. Splitting pairs stores snapshot data.

• Workflow for storing snapshot data or clone pairs in consistency groups

• Restoring Thin Image pairs

  Restoring a Thin Image pair overwrites the existing P-VOL data with the differential data on the S-VOL.

• Thin Image pair resynchronization

  Resynchronizing a Thin Image pair updates the S-VOL with the differential data and deletes the replaced data, the data in the pool. Resynchronizing a pair maintains the relationship between the P-VOL and S-VOLs.

• Assigning MU numbers to deleted snapshot data

  Use this process to assign an MU number to deleted snapshot data.

• Deleting snapshot data
• Deleting Thin Image pairs
• Assigning secondary volumes to Thin Image pair snapshot data
• Releasing assignment of secondary volumes from Thin Image pair snapshot data
• Changing assignment of secondary volumes to Thin Image pair snapshot data

  You can change S-VOLs that are assigned to snapshot data.