Single Instance Storage Reduction per Vault Store Group report

This Enterprise Vault Reporting report shows the storage reduction that has resulted from Enterprise Vault single instance storage for each vault store in a vault store group.

For more information on Enterprise Vault single instance storage, see "How single instance storage works" in Installing and Configuring.

Table: Report input parameters shows the parameters that you specify for this report.

Table: Report input parameters

Parameter	Lets you do this
Site Name	Select the Enterprise Vault site.
Vault Store Group Name	Select a vault store Group.

The report output contains up to three sections. Each section provides storage reduction information for the vault stores with a particular sharing level.

There are three possible sharing levels:

Share within group
Share within vault store
No sharing

Note:

If none of the vault stores in the group uses one of the sharing levels, then the report omits the section for that sharing level.

The sections provide the storage reduction information as a summary, a chart, and a table:

The summary provides the following information:
- The total number of vault stores with the indicated sharing level.
- The total original size of the items that are associated with these vault stores.
- The total stored size of the items that are archived in these vault stores.
- The total storage reduction in these vault stores that is the result of Enterprise Vault single instance storage.
The chart shows the top vault stores by percentage storage reduction, up to a maximum of 10 vault stores.
The table provides storage reduction information for each vault store in the vault store group. It ranks the vault stores by percentage storage reduction.

Table: Report output: storage reduction per vault store table lists the information that is shown in the report's table for each vault store.

Table: Report output: storage reduction per vault store table

Item	Description
Vault Store Name	The target vault store for which data is shown.
Number of References to Shareable Parts	The number of references that exist to the shareable parts (SIS parts) in the vault store. Before it stores a SIS part, Enterprise Vault checks whether an identical SIS part is already stored within the target vault store's sharing boundary. If an identical SIS part is already stored, Enterprise Vault references the stored SIS part and does not store it again. The ratio of the number of references and the number of parts gives some indication of the amount of storage duplication saved.
Number of Shareable Parts	The number of SIS parts for the items that are associated with the target vault store.
Total On-Disk Size (GB)	Total size in gigabytes of the items on disk, before they were archived.
Total Original Size (GB)	Total original size in gigabytes of the archived items, before any savings that are due to Enterprise Vault single instance storage.
Total Compressed Size (GB)	Total size in gigabytes of the archived items.
Storage Reduction (GB)	The total original size minus the total compressed size, in gigabytes. This value indicates the storage reduction that Enterprise Vault single instance storage has produced for the vault store.
Storage Reduction (%)	The total original size minus the total compressed size, as a percentage value.