With Enterprise Vault 10.0 and later it is now a much simpler job to change index locations.  Perhaps you need to do it because your current index volume is filling up, or perhaps you have other reasons.  Well, whatever the reason is, this short video shows you the steps to go through to move an index from one location to another, including the steps that you have to do yourself, versus the 'wizard' doing for you.

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EV Indexing - Change Location.mov