HP Storage Essentials NAS Manager Software - Manual (Page 601)

Storage Essentials 5.00.01 User Guide 571
IMPORTANT: If you perform the calculations manually, you may see a different value than the one
displayed in the Storage Cost column. When the management server calculates the storage cost, it
does not use the rounded values displayed in the Mounted Storage, Unmounted Storage and
Storage Tier columns. The management server rounds the values of all calculation results, except for
the total storage cost (Step 4), in the tables for better viewing. In the case of US currency, it rounds
the values off to the penny. To preserve accuracy, the management server does not use the rounded
values displayed in the tables when it performs any of its calculations.
Step 4 - Review Storage-Based Chargeback Result
IMPORTANT: The management server displays chargeback information up to the end of the
previous month. For example, assume you view chargeback information in the middle of February.
The calculations for chargeback would include the month of January, but not February.
The total storage-based monthly chargeback is displayed. This number is calculated as follows:
(Total Storage Cost) x (Ownership %) = Ownership Cost
where
• Total Storage Cost is the total Storage Cost from (Step 3 - Review Storage Dependency
and Cost).
• Ownership % is the percentage of ownership.
• The following figure displays the Chargeback result. To find the total storage cost, the
management server added the values in the Storage Cost column in the previous figure
($458.08 + $698.62). The management server then multiplied the percentage of ownership,
which in this case was 100 percent for the Engineering department. The resulting ownership
cost is displayed below.
IMPORTANT: You may have noticed a discrepancy in the following figure. When you look at the
Total Storage Cost value in the table, you see many numbers after the decimal place. The
management server lets you see the true value of the number without rounding. The management
server does round the value for the total storage cost above the table, so that you can provide a
realistic figure to upper-management. In the case of US currency, the total storage cost is rounded
off to the penny.
Editing Percentage of Ownership
To remove the department ownership of an asset:
1. Access Chargeback Manager.
2. Click the link for the element in the right pane.
3. Click Asset-based under the Chargeback node in the tree.
4. Verify the option, "Step 2 - Assign Departmental Ownership Percentage" is displayed in the right
pane.