Ok, used capacity is the amount of space used by all backup data, it does not contain anything else.
Returning to the previous question: DPN summary report as well as status.dpn %Full value provide that the used space is 13,3TB
I have done the steps described in the article https://support.emc.com/kb/197986 but 7,5TB is still used for the unspecified data. Are there any other method of obtaining a realistic analysis of data?
There is a report named backend capacity report. That can be used to caculate the backup size after de-duplication. You could run it, then get the real size of all backups.
If the size is less than capacity used, that could be some hidden backups somewhere. You can open a case for support.
root@avamar://#: mccli server show-prop
0,23000,CLI command completed successfully.
State Full Access
Active sessions 0
Total capacity 23.3 TB
Capacity used 20.8 TB
Server utilization 89.2%
Bytes protected 16.1 TB
The 89.2% server utilisation value is derived from the following calculation
Capacity Used / Total Capacity (20.8TB / 23.3TB)
Please ignore the 'bytes protected' value. It bears no direct relation to capacity consumption on the Avamar server.
Yes, I got it. I'm trying to find the solution of how to clean up the "hidden" backups in order to decrease GSAN capacity and make it equal to 13,3TB as it should be, instead of 20,8TB as it is right now.
There is no '13TB' of hidden data. I see a problem with the calculation you mentioned earlier:-
%Full value of 57% is represented the proportion of actual physical space, i.e., used space is 23,3 TB * 57% = 13,3 TB
In actual fact:-
23.3TB == status.dpn value of 65% == 100% of user backup storage capacity
20.3TB == status.dpn value of ~57% == 89% of user backup storage capacity
The values returned by mccli server show-prop are all you need to understand capacity from a backup storage perspective.
These report on the 'green area' that you see in the schematic in https://support.emc.com/kb/457224 below the section titled "How is data stored on the Avamar?"