Installation manual

CLI Storage-Management Guide 15-1

Chapter 15

Shadowing a Volume

You can create a continuously-updated copy of a managed volume, called a shadow

volume. The shadow volume can be on the same switch as its source volume (as

shown below), or it can be hosted on another switch in the same RON (shown on the

next page).

Shadow volumes have applications for implementing a Content-Delivery Network

(CDN), backing up client data, or disaster recovery. For a CDN, you can configure

several shadow volumes for the same source volume, each at a different switch. To

back up volume files, you can funnel several source volumes into the same shadow

volume. In case of disaster at the source volume, you can reverse the shadow

volume’s configuration and allow read-write access to the “shadowed” files.

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