Chapter 6 Operation of Performance Optimization Function (GUI)
II-21
Select this function to analyze a specific period in the past.
•
Period
to
calculate
Select this function to analyze data in a specified period periodically such as daily, weekly or monthly. For
example, if you set the period from six days ago to the present, you can perform weekly analysis of the week
without changing settings.
(ii) Specification of the days of the week
Specify the analysis target days of the week.
(iii)Specification of the time zone
Specify the analysis target time zone. A Time Zone spanning over two days (e.g. 8 hours starting from 20:00)
can be specified.
(iv) Determination of the analysis period
When you specify a period, days of the week and time zone and then click the [OK] button on the Analysis
Property dialog screen, the specified analysis period is registered. Clicking the [Cancel] button will cancel the
specified analysis period and restore the original analysis period.
The analysis period is set under the power conditions of the period, the day(s) of the week, and the time zone that have
been specified. The following is the examples of the analysis period setting.
Example: Setting analysis period
Analysis Period to be specified
From 10:00 to 17:00 on Thursdays, Fridays and Saturdays for the past 20 days
(Assume that the current date is January 31, 2002.)
Specification on the Setup the Analysis Period dialog screen
Period
Absolute Date: Specify the start day and end day as follows:
Opening - 2002 Year 01 Month 11 Day
End - 2002 Year 01 Month 31 Day
Period to Calculate: Specify from 20 days before to the present.
Day of the Week to Calculate
Activate check boxes of Thursday, Friday and Saturday.
Time Zone to Calculate
Specify 7 hours from 10:00.
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The signal color corresponding to the Busy Ratio is appended to the icon of a RANK and logical disk. The color
allows you to visually recognize the degree of the Busy Ratio so that the bottleneck can be detected easily.
Furthermore, by specifying classes of Busy Ratios, reference level values for executing replacement are specified.
Replacement plan is applicable to the RANKs and logical disks that reached the caution zone or danger zone. For
replacement plan, refer to 6.2.5 “Replacement Plan”.
Explanation will be given below about Analysis Property dialog ([Sort of Busy Ratio] tab) screen and setting
