CE Certified Administrator
How does Continuity Engine handle Public IP Addresses
Summary Starting from version 8.0, Continuity Engine changed the way it monitors, controls and filters server's public IP addresses. This article summarizes them. Public IP addresses management Simplified configuration If you want to change the ...
Continuity Engine Troubleshooting - Application Slowdowns
This artcle discusses application slowdowns that you may encounter under routine operations. Neverfail Continuity Engine is designed to provide robust continuous application support and a slowdown of protected applications is considered an abnormal ...
Continuity Engine Troubleshooting - MaxDiskUsage Errors
This artucke introduces you to MaxDiskUsage errors when using Neverfail Continuity Engine. Continuity Engine generates MaxDiskUsage errors when either the send or receive queues are full. MaxDIskUsage Errors Learning objectives At the completion of ...
Continuity Engine Troubleshooting - Channel Drops
This article discusses unexpected channel drops. Under normal operations, Neverfail Continuity Engine maintains continuous communications between servers using the Neverfail Channel. When communications between servers fail, the condition is referred ...
Continuity Engine Troubleshooting - Synchronization Failures
Neverfail Continuity Engine provides protection to your applications by replicating data to a passive server. Continuity Engine attempts to synchronize protected data on all servers and continually replicates changes to that data. This article ...
Continuity Engine Troubleshooting - Invalid License
This adticle introduces you to license related problems that you may encounter durig routine operations. Invalid License Learning objectives At the completion of this session you should be able to: identify the symptoms of an invalid Neverfail ...
Continuity Engine Troubleshooting - Two Active or All Passive Servers
This session introduces you to resolving unexpected occurrences where two servers are active or all the servers are passive. Neverfail Continuity Engine is designed to operate with one server active, while the other server or servers are passive. ...
Continuity Engine Data Rollback Module
This article addresses the Neverfail Continuity Engine Data Rollback module which provides a method of recovering from data corruption. Data Rollback Learning objectives At the completion of this session you should be able to: Recall the purpose of ...
Continuity Engine Shutdown/Restart Processes
This article introduces you to the correct procedures for shutting down and restarting Neverfail Continuity Engine. Shutdown / Restart Processes Learning objectives At the completion of this session you should be able to: identify the consequences of ...
Continuity Engine Switchover/Failover Processes
This article discusses Switchovers and Failovers, their similarities and differences. It also discusses a condition called False Failover, which can result in a Split Brain Syndrome. Learning objectives At the end of the session you should be able ...
Check Continuity Engine Server Status
This article describes how to check server status by reviewing several indicators, including the system tray icon, the Server Details page and Applications page in EMS, and Windows services. Check Server Status Learning objectives At the end of the ...
Accessing the Continuity Engine Servers
This article introduces the Neverfail Continuity Engine Management IP addressing. It allows you to manage your Neverfail Continuity Engine servers even when they are in a passive role. Continuity Engine employs 2 or 3 servers working together. One ...
Continuity Engine Product Architecture
Learning objectives At the completion of this session, you should be able to: Identify major components of the Neverfail Continuity Engine product architecture. Describe major component configuration. Identify advantages of the Neverfail Continuity ...
Continuity Engine Features and Benefits
Neverfail offers a High Availability & Disaster Recovery solution focused on continuous availability. To ensure continuous availability, Neverfail uses fully redundant servers including a Primary server and the Secondary server. Each server is ...
Neverfail Continuity Engine Synchronization Failures
Summary This Knowledgebase article provides information about how to resolve Neverfail Continuity Engine synchronisation failures including the symptoms, causes, and resolutions. More Information When Neverfail Continuity Engine is started, a Full ...
How to Apply Windows (OS) Patches or Hotfixes on a Neverfail Continuity Engine Pair With Minimal Interruption
Summary This article can be used to apply Windows (OS) patches or hotfixes on a Neverfail Engine pair with minimal interruption. More Information Neverfail Engine's unique architecture allows you to install updates of the operating system or apply ...
Resolve Two Passive Servers (Pair) or Three Passive Servers (Trio)
Summary This Knowledgebase article provides information about the occurrence of all servers passive including the symptoms, causes, and resolutions. More Information All servers are passive at the same time Symptoms The first indication that ...
Neverfail Continuity Engine Channel Disconnects
Summary The Neverfail Channel allows replicated data and status/control information to pass between the servers in a Neverfail group. When the Neverfail Channel disconnects unexpectedly, it is referred to as a channel drop. Channel drops interrupt ...
How to raise a new Support Request
Summary This Knowledgebase article provides information about the steps to take before logging a new Support Request (SR). More Information Neverfail maintains a comprehensive Knowledgebase with a large number of tutorials, step-by-step guides, and ...
How To Resolve Two Active Servers (Split-Brain)
Summary This Knowledgebase article provides information about the symptoms, causes, and resolutions of two active servers. More Information The occurrence of two active servers is not by design and when detected, should be resolved immediately. When ...
How to Configure Windows Server 2008 and 2012 to Store Shadow Copies
Summary This Knowledgebase article provides information about how to configure Windows 2008 to store Volume Shadow Copies. More Information The Neverfail Data Rollback Module incorporates Microsoft's Volume Shadow Copy Service (VSS) to create shadow ...
How to use the Neverfail Advanced Management Client
Summary This Knowledgebase article provides information about using the Neverfail Advanced Management Client. More Information The Neverfail Advanced Management Client is used to control Neverfail software and provides access to the status of ...
How to Check the Neverfail Channel Status in Neverfail Continuity Engine
Summary The Neverfail Channel is the key communications link between the servers in the group and allows for replication of updates from the active server to the passive server. As such, the status of the channel is important and knowing how to ...
How to Perform a Managed Failover with Neverfail Continuity Engine
Summary This Knowledgebase article provides information about the automatic switchover process and how to trigger a managed switchover. More Information A switchover can be triggered, automatically or manually (managed) and can only occur if the ...
How to Restart a Passive Server with Neverfail Continuity Engine Installed
Summary This Knowledgebase article provides information on how to restart a Passive server running Neverfail Engine. More Information When restarting a server running Neverfail Engine, it is important to follow the recommended procedure to prevent ...
How to Restart an Active Server Running Neverfail Continuity Engine
Summary This Knowledgebase article provides information on how to restart a Primary (active) server running Neverfail Engine. More Information When restarting a server running Neverfail Engine, it is important to follow the recommended procedure to ...
How to Configure Neverfail Continuity Engine to Create Shadow Copies
Summary This Knowledgebase article provides information about how to configure Neverfail Continuity Engine to create shadow copies and configuration options for the Neverfail Engine Data Rollback Module. More Information Neverfail Engine provides ...
Neverfail Continuity Engine Application Slowdown
Summary This Knowledgebase article describes the occurrence of application slowdown including the most common symptoms, causes, and resolutions. More Information Any piece of software installed on a server or workstation consumes a finite amount ...
How to use the Engine Management Service
Summary This Knowledgebase article provides information about using the Engine Management Service. More Information The Engine Management Service is used to control Neverfail software and provides access to the status of Neverfail Continuity Engine ...
How to Check the Neverfail Continuity Engine Send and Receive Queues
Summary This Knowledgebase article provides information about how to check the status of the active server's send queue and the passive server's receive queue using the Engine Management Service UI. More Information Neverfail Continuity Engine uses ...
How to Configure Network Monitoring and How to View Network Status
Summary This article provides information about how to use the Neverfail Advanced Management Client to configure network monitoring and view the network status of your Neverfail Continuity Engine cluster. More Information The Neverfail Advanced ...
How to Configure SkipAsSource
Summary This Knowledgebase article provides information about Neverfail Continuity Engine's public identity. Public IPs Public IPs are now added when a machine goes active and removed when a machine goes passive, they are also filtered by the new ...
How to Stop and Start Applications in Neverfail Continuity Engine
Summary This Knowledgebase article provides information about how to start and stop applications using the Engine Management Service. More Information Neverfail Continuity Engine allows you to stop and start applications and monitoring from the ...
How to Manually Synchronize and Verify Files, the Registry, and Related Tasks with Neverfail Continuity Engine
Summary This article provides information about how to manually synchronize and verify files, the registry, and related tasks with Neverfail Continuity Engine. More Information The Summary Status pane of the Status page of the Engine Management ...
How to View, Filter, and Export Event Logs
Summary This Knowledgebase article provides information about how to view, and export event logs. More Information A good maintenance plan includes a regular review of event logs to identify potential issues or to troubleshoot issues that arise and ...
How to Recover from a Neverfail Continuity Engine Failover
Summary This Knowledgebase article provides information about the failover process and how to recover from a failover. More Information A failover should not be confused with a switchover. A switchover is a controlled switch (initiated from the ...
How to Setup Data Snapshots / Rollback for Neverfail Continuity Engine
Summary This Knowledgebase article provides information about how to configure Snapshots, Data Rollback and Volume Shadow Copy in Neverfail Continuity Engine. More information Server Snapshots Neverfail Continuity Engine’s Snapshots (also known as ...
How to Create Shadow Copies Manually Using the Neverfail Continuity Engine Data Rollback Module
Summary This Knowledgebase article provides information about how to create shadow copies manually using the Data Rollback Module in Neverfail Continuity Engine. More Information The Data Rollback Module allows you to automate the creation of shadow ...
How to Monitor Shadow Copies with Neverfail Continuity Engine
Summary This Knowledgebase article provides information about Data Rollback monitoring configuration options accessible from the Shadows tab of the Engine Management Service. More Information The Neverfail Continuity Engine Data Rollback Module ...
Resolve an Invalid Neverfail Continuity Engine License
Summary This Knowledgebase article discusses the occurrence of an invalid Neverfail Continuty Engine license including the symptoms, causes, and resolutions. More Information The Neverfail Continuty Engine license is generated using either HBSIG of ...
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