The Enterprise Vault collector combines multiple archived items within a partition into much larger collection files. The use of collection files may significantly improve backup times for the partition, although Enterprise Vault takes slightly longer to retrieve collected items. The collection files are standard Windows CAB files.
Enterprise Vault single instance storage can continue to share SIS parts after they have been collected.
Collection is not recommended on any devices that perform deduplication, as it causes loss of deduplication.
As users delete archived items, the number of references to an item decreases. When no references remain to an item, Enterprise Vault deletes the item. Note however that if you use collections, unreferenced items may remain in a CAB file for some time before they are deleted. Enterprise Vault compacts a CAB file and deletes the unreferenced items when the ratio of unreferenced items reaches a fixed value.
. If you want to use collection files, select this option and then select as the collector.
Note: |
If you configure a partition to use collection files, you cannot revert to not using collection files. |
. Enter the local time at which you want collection to start.
. Enter the local time at which you want collection to finish. Enterprise Vault stops collecting at this time or when it has no more files to collect, whichever comes first.
. Click this option to run collection on this partition immediately.
. Enter the maximum size for collection files. The default size is 10 MB. You may want to change this value to optimize the use of your backup media.
Note the following:
The larger a collection file, the longer Enterprise Vault takes to retrieve collected items.
For performance purposes, Enterprise Vault limits the number of files that a collection file contains. Therefore collection files may be smaller than the maximum size.
The Enterprise Vault collector does not add to a collection file after the file has been created.
. Enter the amount of time that must elapse since items were archived before they are eligible for collection.
Note the following:
Enterprise Vault does not collect files until they have been backed up. Do not set the elapsed time to less than your backup frequency, otherwise Enterprise Vault wastes resources repeatedly checking whether the files have been backed up.
To aid indexing performance, Enterprise Vault should index items before they are collected. You should therefore allow a minimum of one day before items are collected.
A long delay provides no benefit, except that until collection occurs the items are retrieved more quickly.