HP Storage Essentials SRM 6.0 User Guide for Enterprise Edition and Standard Edition SRM Software (July 2008)

HP Storage Essentials SRM 6.0 User Guide 657
MB to gigabytes (0.887 GB) and round the output (0.89 GB), the capacity in Capacity Manager
matches the number in Chargeback Manager.
Figure 117 Capacity in Capacity Manager
How a Depreciation Method Is Calculated
This section contains the following topics:
• Calculating Straight Line Depreciation, page 657
• Calculating Fixed Declining Balance, page 658
• Calculating Double Declining Balance, page 660
Calculating Straight Line Depreciation
When the management server calculates straight line depreciation, it calculates depreciation based
on a fixed rate. These instructions describe how the management server performs the straight line
depreciation calculation. An example is provided for each step, so that you can try the calculations
for yourself.
The following is how the management server calculates straight line depreciation:
1. The management server rolls back the purchase date to the beginning of the purchase month. If
the purchase date is later than today (for example, a future purchase), then the purchase date is
rolled back to today.
Example: Assume the purchase date of an element is January 15, 2003. The management
server adjusts the purchase date to January 1, 2003, when calculating months to depreciate.
2. It determines the period ending date. This is equivalent to the last day of the previous full month.
Example: Assume today's date is January 9, 2004. The management server sets the period
ending to December 31, 2003.
3. The management server calculates the delta between the purchase date and the period ending
date. This determines how many month’s worth of depreciation amount the management server
need to take into account.