Hello Satish,
The following documents should help you
Managing Exchange Migrations with Symantec Enterprise Vault
http://www.symantec.com/docs/TECH124279
Domain/Forest Trust is required in order to archive mailboxes on an Exchange Server in an...
Hello,
Items getting deleted from PST file after migration is controlled by the following setting which is found under Policies - Exchange - PST Migration - PostMigration Tab.
Hope this helps.