5.2.1 Notes on system operation
- Organization of this subsection
(1) Changing the time at the host where PFM - Agent for Service Response is run
(a) Setting the time manually
To set the time manually:
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Terminate the processes of PFM - Agent for Service Response.
If you are going to change the time backward to a point that has already passed, make note of the current system time.
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Change the system time.
If you have changed the time backward, wait until the new system time reaches the time that was noted in step 1.
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Start the processes that were terminated in step 1.
- Note:
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When you change the time manually at the host where PFM - Agent for Service Response is running, terminate PFM - Agent for Service Response before you make the time change.
(b) Using NTP to adjust the time
Typically, you will use NTP over a long period to make a series of small adjustments to the system time so that applications are not affected. This method of time adjustment can be used while PFM - Agent for Service Response is running.
(c) Using SNTP to adjust the time
SNTP is typically used to make a single adjustment to the system time so that it matches the actual time, in the same manner as when you set the time manually. This may result in a significant change to the system time, so you should make sure that this method is not used while PFM - Agent for Service Response is running. When you use SNTP, use the same procedure as when you set the time manually.
(d) Using any other method to adjust the time
If you are sure that the time adjustment method to be used will not affect the operation of normal applications, implement the method in the same manner as when NTP is used. If there is no such assurance, implement the method in the same manner as when SNTP is used.
(2) Starting automatically the IE probe
To start the IE probe from the Start menu of Windows, you must log on to the host by the account for measurement. When you cannot manually log on to the host after restarting the Windows (such as when you schedule the automatic reboot of the system), consider to place the IE Probe in the Startup folder and enable the automatic logon in Windows. If you use the Windows services to start IE Probe, you do not have to enable the automatic logon. For details about setting to start the IE probe using the Windows service, see 5.1.5 Starting and stopping the IE probe service using the Windows services.
The following shows the procedure for starting the IE probe from the Startup folder in Windows.
- Note:
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If the host joins a domain, you cannot enable automatic logon in Windows by the following procedure. In that case, log on to the host manually and start the IE probe.
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Create the account for measurement.
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Enable automatic logon in Windows.
For setting automatic logon in Windows, see your Windows documentation.
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Place the IE probe in the Startup folder of the account created by the procedure 1.
(3) Security management when using the IE probe
To start the IE probe from the Windows Start menu, you must log on to the host by the account for measurement. For the sake of security, consider the following operations:
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Control the physical or software access to the host so as to prevent the unauthorized use.
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Use the screensaver password protection to prevent the unauthorized use.