Veritas Storage Foundation 5.1 SP1 Advanced Features Administrator"s Guide (5900-1503, April 2011)

Migrating data from thick

storage to thin storage

This chapter includes the following topics:

■ About using SmartMove to migrate to Thin Storage

■ Setting up SmartMove

■ Migrating to thin provisioning

About using SmartMove to migrate to Thin Storage

If you have existing data on a thick LUN, the SmartMove feature enables you to

migrate that data to a thin LUN, and reclaim the unused space. The SmartMove

feature leverages the Veritas File System (VxFS) information about which blocks

in a Veritas Volume Manager (VxVM) volume contain data. Therefore, the

migration functionality is available only when a VxVM volume is on a mounted

VxFS file system.

By default, the SmartMove feature is enabled for all volumes. Setting up the

SmartMove feature is only required if you have disabled the feature previously.

After SmartMove is enabled, migrate the data to the thin LUN, following the

recommended procedure.

Setting up SmartMove

This section describes how to set up SmartMove.

Chapter