HP Storage Essentials Storage Resource Management Report Optimizer Software 6.0 Contexts Guide (October 2008)

User Guide 3
Repeating objects - Objects are repeated across classes. Take care when picking objects from the
same class. For example, when creating a report containing the Host > HBA class, use only objects
from HBA class. Do not mix objects from the HBA for Dependency class. For a list of these objects,
see ”Summary: Contexts Visible to Report Creators and Users” on page 18.
#MULTIVALUE error - Occasionally, data values in the report show a #MULTIVALUE error. This is
because the column in question has multiple values associated with it. To resolve this issue, the key
object that can eliminate multiple values has to be identified and added to the report. It isn’t
necessary to show this value inside the report, but it needs to be added in order to avoid this error
For example, if you pick a vendor name from the Host class and Total Capacity in GB from the
Host Capacity Statistics - Latest class, when you run the report you will see this error because there
can be multiple values (in this case hosts) for a vendor. To resolve this error, pick a unique object.
In this case, pick the Host Name object.
For additional information, see ”Avoiding #MULTIVALUE Errors” on page 5.
Contexts - When creating a new report, a list of contexts based on the objects to be included in the
report is displayed. You must select one context in order to create the report. Your selection of
context resolves the multi-path issue, picks a particular path, and allows the report to run.
NOTE: You should deselect the option to ”reset contexts on refresh” on the report side, so that the
context list will not be prompted each time when you run or schedule the report.
For additional information, see ”Example Use Cases” on page 21.
Avoiding Incompatible Objects
Some classes and sub-classes are independent and should not be used with any other classes or
sub-classes. These classes are incompatible, and cannot be combined in a single report. Using
these classes in combination with other classes and sub-classes will result in error messages
indicating “incompatible objects.” The following classes are independent:
• Asset Class
• Chargeback Class
Capacity Statistics
- Drill
Collectors periodically capture every
element statistic. These stats,
collected for every interval, are
represented in the “Drill” statistics
class. Use this class in the reports
when you want to drill up or drill
down.
Use this class if you are interested in
the drill functionality of the product.
Host > Host Volumes > Host Volume
Capacity Statistics - Drill
Table 1-1: Class Categories
Category What it means Example