Displaying and Customizing Core Storage and Diagnostic Reports : About replication data synchronization metrics
  
About replication data synchronization metrics
The Replication Data Sync - Remaining Bytes report summarizes the amount of data remaining to be replicated to the secondary data center once replication has been resumed. This data was recorded to the Journal LUN when replication was suspended. This report also displays the amount of data remaining to be replicated to the secondary data center during first sync (first sync creates the initial copy of the primary data center LUN in the secondary data center).
The Replication Data Sync—Remaining Bytes report answers these questions:
How much data remains to be copied to the secondary data center once replication has restarted?
How much data remains to be copied to the secondary data center during first sync?
Choose Reports > Storage: Replication Data Sync. These customization options are available:
LUN
Specifies the LUN whose statistics you want to see from the drop-down list.
Period settings
Specifies 5m (last five minutes), 1h (last hour), 1d (last day), 1w (last week), or All (last month). For a custom time period, specify the start and end times in the fields immediately below these settings. Use this format: yyyy/mm/dd hh:mm:ss. You can also use the adjustable slider at the bottom of the graph.
Report type
Toggles the reports to be displayed by clicking the type heading. The types of reports available depends on the type of report you selected above.