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The computer hosting the Enterprise Vault Indexing service requires access to adequate storage for the indexes.
Indexes may be placed on local storage, SAN, or NAS. If fast indexing is required or searches across a large number of archives, NAS devices may not be suitable.
File systems that use slow storage media as part of their solution, such as optical disk, are unsuitable for indexes.
If indexes are stored on NetApp devices, and possibly other NAS systems, opportunistic locking must be turned off for volumes that contain indexes.
As anti-virus software can potentially change data, it is important to exclude the index locations in your virus checking application.
Table: Index size compared to size of original data shows how to calculate the expected sizes of indexes.
Table: Index size compared to size of original data
|
Indexing type |
Index size as a proportion of original data size |
|---|---|
|
Brief |
3% |
|
Medium |
8% |
|
Full |
12% |
The type of data being archived will also affect the size of indexes. Archiving a large number of text or HTML files will produce larger indexes. Archiving a large number of binary files, such as image files, will produce smaller indexes, as the content is not indexed.