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Managing performance collection, Managing performance collectors – HP Storage Essentials NAS Manager Software User Manual

Page 259

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Storage Essentials 5.1 User Guide 227

interface or the performance of the product. For example, assume you added the site “remotesiteA”

for global reporting. It would appear in the tnsnames.ora file as the following:

remotesiteA =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.2)(PORT = 1521))

)

(CONNECT_DATA =

(SID = appiq)

)

)

Now, let's assume you removed “remotesiteA” from the user interface by clicking the corresponding

button for the site and then the Refresh Now button near the bottom of the Global Reporter

page (Reports > Storage Essentials > Report Configuration in HP Systems Insight Manager).

Even though the remote site has been removed from the user interface, it still appears in the
tnsnames.ora file. If you add “remotesiteA” as a remote site for global reporting again, another

listing will be added to the tnsnames.ora file. These duel listings do not negatively impact the

product.

Managing Performance Collection

This section describes the following:

Managing Performance Collectors

” on page 227

Starting Performance Collectors

” on page 229

Stopping Performance Collectors

” on page 229

Setting the Date and Time for Performance Collectors

” on page 229

Viewing Data Aging Statistics for Performance

” on page 230

Managing Performance Collectors

The management server uses performance collectors to gather information for Capacity Manager

and Performance Manager charts, as well as for monitoring. Use Data Collection page for

Performance collectors to stop and start collectors as well as schedule when they run. Each row in

the table corresponds to a collector. The Element Type column displays which element the collector

gathers data for, and the Statistics column displays which statistics for that element the collector is

tasked to gather.
For example, assume you see host_A in the Element Type column and Processor Utilization in the

Statistics column. That collector gathers data about processor utilization for host_A.
You can have multiple collectors for an element. Let's go back to the example of host_A. Assume this

host has another collector. Underneath the first row there is anther row for the second collector. The

Element Type is host_A, but this time the following statistics are listed: Physical Memory Used, Free

Physical Memory, Virtual Memory Used, Free Virtual Memory. The second collector gathers

information about all of those statistics listed for host_A.