Some organizations have PST files stored on a central file server with users accessing them over the network, even though this configuration Windows crashes, or if the machine is powered down without quitting Outlook and Windows normally. The risk of this increases the larger a file gets.Ī PST file may be corrupted if it is open in Outlook when the application terminates abnormally. Any interruption in processing while a file is beingĬreated or updated may result in a partial update, which causes a corruption.
The PST file is a complex binary file format and is not designed to be fault tolerant. Often still allow them to be used for a number of different reasons. However, it is still possible for users to create and work with these files, even in theĪdministrators can disable the ability to use them, but many organizations have a large number of PST files still in existence, and they Need for users to have separate local archive storage. With the release of Exchange 2010, Microsoft recognized the problems these files caused and introduced enhancements to eliminate the The time taken in resolving issues with PST files can be a significant drain on resources for IT administrators. These files often grow to an excessive size, which makes them particularly liable to corruption - especially if they are accessed over a network. The PST file is not a robust file format, and was not designed for reliable long-term storage of large amounts of data. Widely used simply as a convenient way for end users to store and organize their older email data. Or when an organization needs to retain a separate copy of data (such as when an employee leaves an organization).
PST files are also often used when email needs to be moved from one place to another, such as when migrating between mail servers, This feature was enabled by default in Outlook 2003 and Outlook 2007. PST files are created by the “Auto Archive” function in Outlook, which automatically removes older messages and data from Exchange andĪrchives these locally in a PST file. Quite large, and some PST files will contain many items, these filesĬan sometimes grow to a size of several GB each. TheyĪre used to store local copies of email messages, calendar events,Ĭontacts, task lists and other similar items.Įach PST file is a container that comprises a folder structure and a PST files are created by the Microsoft Outlook desktop client.
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