Igal is talking about OnCommand Reports, which is based off of IBM Cognos Insight, the DFM commands will not work.
This report auto formats to the relevant time frame, go into OCR report and "Insert Data" : OnCommand Report > Inventory Model > Storage Model > Volume (or aggregate whichever you need) > Capacity. Then add "Days to Full"
. As the system is approximating the time until full, you will see different values in the output.
I think I misunderstood what you wanted, so another option is to build your own column. Highlight the Daily growth rate (GB) and click on "Calculate"(the button to the right of Sigma). This will bring up the Calculate window at the bottom of the screen. From there leave "operation type" as Arithmetic, change "operation" to * (multiplication), enter 30 in the "number" textbox. From there you can change "New item name" to be 30 Day Growth. You can repeat this with * 180 for 6 months, * 90 for quarterly, etc.
This is a query about to get the historical data volume size. I am able to get only the graphical information of volume trending using " dfm graph" command. What if i want to get the size of volume on a specific day ( Eg : 3 months ago ) . Is there any commands to find out size of the volume before 3 months on a specified day. I want to access those historical data to find out how many times these volumes has increased its capacity in past 3 months.