Configuring hash settings
Hashes are used to identify unique content. Configure the type of hash to compute when harvesting.
About this task
For computing such a hash, document content must be fetched over the network even for harvests where only file system metadata is collected. To avoid this, you can disable content based hashing for file system metadata only indexing. This provides the fastest indexing rate at the expense of the ability to identify unique content. In this case, the information used to compute the hash is based on volume and object metadata.
If you change the hash settings between harvests, the next harvest uses the updated settings for any new or modified documents. For example, you might not have content based hashes created initially, but some time after the harvest completed you decide to enable content based hashing. In this case, a full-text harvest (if the volume allows for that) generates regular content based hashes for all documents that are indexed during the harvest.
The hash setting does not impact data object preview.