Prior to EV 10 there were three levels of indexing, brief, medium and full. Both medium and full index attachments but single words... Full gives you phrase indexing.
EV 10 has only two levels brief and full as per the readme...
New 64-bit indexing engine
Enterprise Vault 10.0 includes a new, 64-bit, indexing engine. To take advantage of the new engine, Enterprise Vault has undergone a significant redesign of its indexing and search components and now runs on 64-bit systems only.
This release includes the following features:
64-bit, scalable indexing engine
32-bit indexes can be upgraded to 64-bit ones, if required
64-bit indexes can be rebuilt, verified and synchronized
Index servers can be grouped to share resources, and to allow for scalable indexing and searching
Concurrent indexing and searching is now supported
Indexing and storage no longer need to be co-located
Indexing is now fully managed by the Administration Console, which includes a new Manage Indexes wizard and Monitor Indexing Tasks page
There are now only two indexing levels: full and brief
Preview length for search results is now configurable
New wildcard searching capabilities. The three-character prefix is no longer required when searching 64-bit indexes
Federated searches can be performed across 32-bit and 64-bit indexes for customers upgrading from earlier releases
The following features are unchanged:
Indexed data is converted at the point of archiving
Indexing is asynchronous to archiving
More info on the old levels ...
http://www.symantec.com/business/support/resources/sites/BUSINESS/content/live/TECHNICAL_SOLUTION/55000/TECH55024/en_US/293428.pdf
Hope that helps,
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