Veritas NetBackup™ OpsCenter Reporting Guide

Deduplication > Deduplication Size Savings

Most NetBackup customers have either implemented some sort of deduplication or plan to in the near future. This is the current trend as customers try to get control of infrastructure and the amount of time backups take. Add to this the need for many customers to protect remote offices across smaller WAN links and deduplication becomes critical since only so much data can be pushed through a small pipe and many times there is no one at the remote site who is capable of managing hardware. In the data center, deduplication reporting helps to determine what the actual deduplication rate is occurring at each PureDisk storage unit. Reporting can be abstracted to view the protected size or stored size across all PureDisk environments or drilled down in to one specific area. Common file or data types can then be identified and matched with their ability to be deduplicated. The report below is a simple dedupe report created using a Media Server Deduplication Pool. It is a very basic report and shows how much data would have been backed up without deduplication enabled. In large environments this would show the number of GB or TB that is NOT being used due to deduplication. The other reports can contrast the dedupe data savings vs. the actual deduped information however in this very small test environment this report shows better information. OpsCenter and OpsCenter Analytics provide the ability to report on the various forms of deduplication available with NetBackup. It can provide reports that show things such as how much deduplication is being done at a remote site before the data hits the WAN pipe. Using the trending feature of Opscenter Analytics can also help to understand if the data is growing faster than the hardware or when the WAN bandwidth can be expected to max out. This allows the company to make educated decisions on when to add infrastructure proactively instead of waiting for things to fail. This report shows the total number of bytes that do not need to be backed up because of deduplication. There is no calculation or ratio in this number. It is the number of bytes (MB, GB, TB etc.) that have not changed since the last backup and therefore do not need to be backed up. This report shows only deduplication jobs. The default Report On parameter for this report is Master Server. This report is available in Historical, and Ranking views. The ranking report groups the total number of bytes saved per host being backed up to show the top five hosts in terms of deduplication savings.

The historical report shows the total number of bytes that do not need to be backed up because of deduplication. There is no calculation or ratio in this number. It is the number of bytes (MB, GB, TB etc.) that have not changed since the last backup and therefore do not need to be backed up. This report shows only deduplication jobs. The default Report On parameter for this report is Master Server

Figure: Deduplication Size Savings Report (Historical) shows a sample view of Deduplication Size Savings Report.

Figure: Deduplication Size Savings Report (Historical)

The ranking report shows the number of bytes that have not changed within the time frame and therefore do not have to be backed up due to deduplication. The report groups the total number of bytes saved per host being backed up to show the top five hosts in terms of deduplication savings. This report shows only deduplication jobs. The default Report On parameter for this report is Master Server.

Figure: Deduplication Size Savings Report (Ranking) shows a sample view of Deduplication Size Savings Report.

Figure: Deduplication Size Savings Report (Ranking)

The following are the details that are associated with the Deduplication Size Savings report:

You can edit the Deduplication Size Savings report to show or hide the columns that you are interested in. All the columns are shown by default. You can also filter the report to view reports of specific master servers. The following table shows the filters for Deduplication Size Savings report and how you can use these filters to view specific data in the report.

Example of filter usage: You may run the Duplication Size Savings report for a specific client to view details for the specific clients

The following report enhancements have been made for the Duplication Size Savings report:

The following filter enhancements have been made for the Duplication Size Savings report:

Known Issues: