MPIO Event Polling and Refreshing the Console

The MPIO Console is refreshed based on event polling or automatically at a selected time interval. The intervals used for these settings can be changed. This topic will cover changing the event polling interval, refreshing the console, changing the automatic refresh settings, and performing a manual refresh.

Event Polling

Event polling is based on certain events that have been detected, such as when a disk has changed, a path has been added or deleted, or when a load balancing policy has changed and refreshes the MPIO Console. The default event polling interval is every 60 seconds.

The event polling interval can be changed, but be aware that the setting will have a performance impact so use caution when increasing the frequency of the interval. When the setting is changed, the console must be closed and re-opened for the change to take effect.

Changing the Event Polling Interval

To change the event polling interval:

  1. In the MPIO Console, right-click on MPIO Management and select Properties.
  2. In the MPIO Management Properties>Console tab, adjust the number of seconds in the Event Polling Interval box.

  3. Click OK.
  4. Close and re-open the console for the change to take effect.

Refreshing the Console

Automatic Refresh detects and updates virtual disk and DataCore Server names in the MPIO Console that have been changed in DataCore SANsymphony software. The console is also refreshed when event polling detects a change. Automatic refresh is enabled by default. The default refresh interval is five minutes. Automatic refresh settings can be changed. Automatic refresh does not affect the operation of MPIO in any way. Refreshes are performed when the console is open and are only used to update information in the console that cannot be detected by an event. Refresh can also be performed manually.

Changing the Automatic Refresh Settings

The shortest interval that can be set is one minute.

To change the automatic refresh interval:

  1. In the MPIO Console tree, right-click on MPIO Management and select Properties.
  2. In the MPIO Management Properties>Console tab, adjust the number of minutes in the Refresh Interval box.
  3. Click OK.

To disable automatic refresh:

  1. In the MPIO Console tree, right-click on MPIO Management and select Properties.
  2. In MPIO Management Properties>Console tab, clear the Automatic Refresh check box.
  3. Click OK.

Performing a Manual Refresh

To perform a manual refresh:

In the MPIO Console tree, right-click on MPIO Management and select Refresh.