Fighting Application Drift with Self-Healing

The ability to conduct and on-demand or automatic self-healing repair of a corrupted PC  and bring it back to the approved desired state is one of the many advantages Utopic’s Persystent Suite offers. In these cases it is easy to imagine a user clicking on a suspect link and infecting their system, or adding an unauthorized application fraught with spyware and other performance-hindering elements, or perhaps accessing their registry and adjusting a standard setting. Persystent Suite is perfectly scaled to directly remediate these issues on a single reboot of the system to return the affected PC to the desired state.

Although these scenarios happen too often and are extremely problematic, the more likely service desk call will be from a user experiencing slow performance or an application performing out of character. There are dozens of potential root causes, but a likely culprit is application drift. This indicates the affected PC is not using the most updated version of the application, an update did not correctly apply during the last upgrade, or, over time, has become misconfigured from its optimum standard. In some cases, it represents unsanctioned modifications made by the end-user or third party.

The best practice is to get the user back up and running immediately. By conducting an on-demand reboot of the PC, the user can return to productivity in about a minute. From the end-user’s perspective, it will be as if the issue never happened. The reboot restores the last known desired state. This desired state, maintained and controlled by IT, contains the proper version and the correct configuration for not only the application, but for the PCs entire operating system.  It also removes any unauthorized changes that may have contributed to the PCs performance issue, yet leaves the end-user files and profiles untouched. From a security, asset management and compliance standard, it ensures each user is using the appropriate version of an application to which they are given rights to access.

However in terms of best practice (and compliance satisfaction), it is important to know why the PC was affected. Every time the desired state is reapplied, Persystent Suite creates a file change report. This report lists all the items that differentiated from the desired state settings. It allows IT to see and document (without having to sift through thousands of event logs) the delta between the approved policies, registries, applications, infrastructure configurations etc…  from the time of the issue and the approved state. This way, IT can pinpoint root causes more clearly and adjust policies or procedures to prevent or mitigate such occurrences in the future.

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