There are two ways to update Dr.Web Servers within a cluster:
Using installation packages
In this case, it is required to stop all Dr.Web Servers and update them one by one.
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The procedure is described in the Installation Manual, section Chapter 7: Upgrading Dr.Web Enterprise Security Suite Software and Its Components. |
Using Control Center
This method involves removing the nodes from the cluster, switching them over to the embedded DB and updating them one by one. After updating all the nodes, connect them back to the common cluster. To do this:
1.Remove all Dr.Web Servers from the cluster except the one that will update the cluster DB: on all Dr.Web Servers in the cluster except one, navigate to Administration → Dr.Web Server configuration → Modules tab and clear the Dr.Web Servers cluster protocol check box. Click the Save button and restart the station.
2.Switch over the Dr.Web Servers that were removed from the cluster to another DB, for example, the embedded one: go to Administration → Dr.Web Server configuration → Database tab and select SQLite3 from the Database drop-down list. For more information about connecting to a database, see the Database section.
3.Disable Dr.Web Agent connections to these Dr.Web Servers: go to Administration → Dr.Web Server configuration → Modules tab and clear the Dr.Web Agent protocol check box. Click the Save button and restart the station.
4.Stop all the Dr.Web Servers that were removed from the cluster.
5.Update the Dr.Web Server hosting the cluster DB.
6.Start and update the remaining Dr.Web Servers one by one via the Control Center. After updating the last server, switch them back to the cluster DB: go to Administration → Dr.Web Server Configuration → Database tab and select the cluster DB in the Database drop-down list. For more information about connecting to a database, see the Database section.
7.Allow Dr.Web Agent connections: go to Administration → Dr.Web Server configuration → Modules tab and set the Dr.Web Agent protocol check box. Click the Save button and restart the station.
8.Add the Dr.Web Servers back to the cluster: go to Administration → Dr.Web Server configuration → Modules tab and set the Dr.Web Servers cluster protocol check box. Click the Save button and restart the station.
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If there are many Dr.Web Servers and updating them may take a long time, it is possible to update only some of them and create a separate cluster with them in it while the rest are updated to maintain continuous operation. The procedure is described in the Updating Dr.Web Server and Restoring it from Backup section. |