System Overview

Figure 1. Example of a system overview

The goal of this panel is to provide the user with a general overview of the health of the disaster recovery system. It shows:

  • The PSS and SSS error status with alert lines (errors that occur during a synchronization process are displayed) in the middle section of the panel.
  • The connection between the systems.
  • The connection to the database.
  • The active/passive status of the systems.
Note: Every time the redundancy status changes, the user interface is updated, i.e. the UI Manager repeats the dpConnect and the pending dpGet functions.

If the status changes again while the UI manager is still waiting for responses, it is an "unexpected change in the redundancy status".

Redu Manager has a “blocking time” (3 seconds by default) during which the redundancy change is not allowed to take place. The buttons are locked in the user interface. The blocking time can be specified via the activeChangeInterval config entry.

In addition, from this panel you can activate manual switching between systems and start general synchronization of online data and alert status (configuration synchronization).

The alerts for the respective server system are displayed in the tables in the middle of the system overview panel. If the maximum parsing time (maxParseTime) is exceeded by the event manager when building the queries for synchronizing the online values, a warning is displayed in the table. When this error occurs, online values ​​between SSS and PSS cannot be synchronized correctly.

Left-click on the area of a server system (see figure above) of the primary or secondary server system to open the System overview panel in redundant systems. The output of the current and maximum error status is also displayed in this area.

If one of the systems is in split mode, this will be shown in the system overview panel and file synchronization will not be possible during this time.

Split mode can only be enabled on the primary server system. On the secondary server system, this option is disabled.

Figure 2. Server system in split mode

Visualization of a crash of the active server in the system overview panel

If all 4 servers of the DRS are running, the active servers are displayed with the color green in the background and the passive servers with the color

If the active server of the PSS/SSS crashes, its background color changes to red and the background color of the passive server changes to green as it became active.

If the passive server of the PSS/SSS crashes, its background color changes to red and the background color of the active server remains green. When the passive server is restarted, its background changes back to .

Buttons

  • Backend details
    The backend details are only shown for DRS - NGA. The button opens the backend overview:
    Figure 3. Backend Overview
  • Send all Values

    Sends all online data and the alert status to the other system. This virtually corresponds to a general synchronization of the systems.

  • Set Active

    Sets the corresponding system to active and automatically sets the other to passive. That means that a manual switchover is performed.

  • DRS driver connection

Allows setting a driver connection, which is managed by the DRS (see also Configuration -> Managers) active/inactive from the DRS point of view.

This panel can be used to activate or deactivate the driver connections of all drivers managed by the DRS from the DRS point of view. The actual status assigned to the connections on the PSS and SSS depends on the driver mode used.

Setting a connection of the IEC driver to active. The driver is running:
  • in mode 0 or 2 -> connection becomes active on the PSS and SSS
  • in mode 1 -> connection becomes active on the active system and inactive on the passive system

Configuration synchronization

Triggers manual configuration synchronization between PSS and SSS.

User/Password

Click this button to open the panel for synchronization of user data between PSS and SSS.

Historical synchronization

Opens the panel that can be used to activate the synchronization of historical data (see Database Synchronization).

Close

Closes the system overview.

Synchronization of user data and passwords

Click on the User/Password button in order to open the panel for synchronizing user data and passwords between the PSS and the SSS.

In the table, all users of the respective system (PSS and SSS) are automatically listed with their passwords.

The following commands can be sent via the buttons here:

  • Password PSS => SSS

    Synchronises the password of the selected user from the PSS to the SSS.

  • Password SSS => PSS

    Synchronises the password of the selected user from the SSS to the PSS.

  • Synchronization PSS => SSS

    Performs a complete synchronization of the user data from the PSS to the SSS.

  • Refresh

    Updates the table.

  • Close

    Closes the panel.