Large restores from an Instant Recovery snapshot
For restore of an entire raw partition or large file system, Veritas recommends a fully allocated snapshot method.
Examples are the following:
VxVM as a snapshot mirror (not space-optimized)
EMC_CLARiiON_Snapview_Clone
EMC_TimeFinder_Clone
EMC_TimeFinder_Mirror
HP_EVA_Snapclone
Hitachi_ShadowImage
IBM_DiskStorage_FlashCopy
IBM_StorageManager_FlashCopy
Any copy-on-write disk array method that is configured with a fully-allocated snapshot.