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Shadow Copy (also known as Volume Snapshot Service, [1] Volume Shadow Copy Service [2] or VSS [2]) is a technology included in Microsoft Windows that can create backup copies or snapshots of computer files or volumes, even when they are in use. It is implemented as a Windows service called the Volume Shadow Copy service.
To avoid downtime, high-availability systems may instead perform the backup on a snapshot—a read-only copy of the data set frozen at a point in time—and allow applications to continue writing to their data. Most snapshot implementations are efficient and can create snapshots in O(1). In other words, the time and I/O needed to create the ...
Snapshots can be useful for backing up self-consistent versions of volatile data such as table files from a busy database, or for rolling back large changes (such as an operating system upgrade) in a single operation. Snapshots have a similar effect as rendering storage quiescent, and are similar to the shadow copy (VSS) service in Microsoft ...
This mode is used sometimes for snapshot type backup schemes, thus only lasting for less than a second, ensuring backed up data is in a consistent state. This command is reversed with a SET LOG RESUME command. A graceful shutdown of WebSphere MQ is called quiescing. [4]
Volume Snapshot Service, or Shadow Copy, in Microsoft Windows; Visual Surround Sound / Visual Surround System : when surround sound is created and perceived with less sources than real surround system. VSS (voltage), V SS, a negative power-supply pin in FET ICs
Bill Clinton is one proud grandpa!. On Monday, Nov. 25, the former President of the United States, 78, appeared on an episode of Live with Kelly and Mark and spoke about how he and the former ...
Workers at Amazon warehouses around the world plan to strike between Black Friday and Cyber Monday this week.
A snapshot indicates that a committed file(s) is stored in its entirety—usually compressed. A changeset , in this context, indicates that a committed file(s) is stored in the form of a difference between either the previous version or the next.