Enterprise Vault™ Introduction and Planning
- About this guide
- Overview of Enterprise Vault
- How Enterprise Vault works
- About Enterprise Vault indexing
- About Enterprise Vault tasks
- About Enterprise Vault services
- About the Archive Discovery Search Service
- About the Enterprise Vault Outlook Add-In
- About Enterprise Vault Search
- Enterprise Vault administration
- About reporting and monitoring in Enterprise Vault
- Exchange Server archiving
- About Exchange Server archiving and user mailboxes
- Exchange Server and journal mailbox archiving
- Exchange Public Folder archiving
- File System Archiving
- Archiving Microsoft SharePoint servers
- Domino mailbox archiving
- Domino Journal archiving
- SMTP Archiving
- Skype for Business Archiving
- Enterprise Vault Accelerators
- About Compliance Accelerator
- The Compliance Accelerator client application
- About Discovery Accelerator
- Discovery Accelerator client application
- Building in resilience
- About Enterprise Vault and VCS
- About Enterprise Vault and Windows Server Failover Clustering
- About Enterprise Vault building blocks
- Planning component installation
- Where to set up the Enterprise Vault Services and Tasks
- Installation planning for client components
- Planning your archiving strategy
- How to define your archiving policy for user mailboxes
- How to plan the archiving strategy for Exchange public folders
- How to plan settings for retention categories
- How to plan vault stores and partitions
- About Enterprise Vault reports
About Enterprise Vault indexing
To provide fast and efficient searching of archived data, Enterprise Vault indexes items as they are archived. An index is created for each archive. As items are added to or deleted from the archive, associated index documents are added to or deleted from the index. When a user performs a search for an item in an archive, Enterprise Vault searches the index, not the actual archive.
Brief indexing. This level enables users to search on attributes of an archived item such as author, subject, recipients, created date, file extension, retention category and so on. With brief indexing, the content of the item is not indexed.
Full indexing. This level enables users to search as for brief indexing, and also provides content searching.
The more information that is indexed, the more disk space is required for the index. Table: Estimated size of index data shows the estimated size of an index as a percentage of the size of the unarchived item for the different indexing levels.
Table: Estimated size of index data
Estimated size of index
At Enterprise Vault 10.0 a new 64-bit search engine was introduced. A 64-bit index is created for the items that are indexed using Enterprise Vault 10.0 or later releases. The indexes that were created using earlier releases of Enterprise Vault were 32-bit indexes. When a search is performed on an archive that has both 32-bit and 64-bit indexes, Enterprise Vault automatically searches across both 32-bit and 64-bit indexes. An update tool is provided in the Enterprise Vault Administration Console to upgrade 32-bit indexes to 64-bit, if required. For details of this tool, see Managing indexes in the Administrator's Guide.
The Enterprise Vault Indexing service manages the various tasks that create, update, and search indexes. It interoperates closely with the Storage service to index items as they are stored, or later, and find items for the Storage service to retrieve. The Storage service converts items to HTML or text, if possible, and this converted content is then used to index the item. As Enterprise Vault does not index the content of items that cannot be converted to text or HTML, it is not possible to search on the content of such items. For example, the content of some binary file types cannot be converted, or searched. However, Enterprise Vault does index the attributes of items it cannot convert, so that items can still be found in the archive.
You do not have to install the Indexing Service on every Enterprise Vault server. For example, in larger deployments of Enterprise Vault the Indexing and Storage services can be located on more powerful computers to optimize search and retrieve performance. Associated Storage and Indexing services can reside on different computers. To ensure good performance, the connection between such computers must be fast.
Enterprise Vault servers that perform indexing can be grouped together in Index Server groups to provide scalability and load balancing.