Robocopy copy file ownership

View this "Best Answer" in the replies below ». Microsoft Robocopy Pure Capsaicin. DragonsRule This person is a verified professional. I've used Robocopy for years and never knew that No, it's another program written to call Robocopy, for those that don't like the original tool. Robocopy copying files but are empty Ask Question. Asked today. Active today. Viewed 6 times. Marius Valentin Lupu. New contributor. Add a comment. Active Oldest Votes.

Multi-threaded support allows Robocopy to open multiple threads simultaneously, allowing many files to be copied in parallel. With multi-threaded copying, total time required to complete the operation will be drastically reduced and cut, when comparing with with typical copying one file at time in serial sequential order.

As Robocopy is generally a command-line only utility although a GUI add-on is available for Robocopy , the new multi-threaded operation capability has to be called via a new switch supported by Robocopy. The new multi-threaded copy feature can be enabled and turned on with the following parameter:.

Where n will instruct Robocopy to do multi-threaded copies with n threads default 8. The value of n must be at least 1 and not greater than between 1 to , with 1 as single thread. In fact, Robocopy will copy files and folders in multi-threaded operation by default, with 8 threads in one go.

To copy a directory without bandwidth limitation and logging with bytes level and ETA. Excludes files that match the specified names or paths. Specifies the wait time between retries, in seconds. The default value of N is 30 wait time 30 seconds. Office Office Exchange Server. Not an IT pro? United States English. Post an article. Subscribe to Article RSS. Click Sign In to add the tip, solution, correction or comment that will help other users.

Report inappropriate content using these instructions. Robocopy and a Few Examples. Table of Contents. Copies subdirectories. For an actual file share migration, I set this up about a week in advance, look at the logs it generates, troubleshoot any issues, and let it run daily until the scheduled cutover date.

On the cutover date, I would put the source share into Read-Only and run the Robocopy job once more to copy over any deltas that have changed since the last run. Afterward, to wrap up, I would unshare the source share and then share out the new share. Sometimes this fails because there is a lock on the file because the user or process has it open. When this occurs, Robocopy will retry the copy to see if the lock is no longer on the file. This flag specifies the amount of time in seconds to wait between retries.

Default is 30 seconds. This means if a single file was locked and remained locked, Robocopy would take almost a year before it would proceed onto the next task! This does not copy multiple files or folders at the same time, but instead uses more threads with the CPU to do the copy it has been set to do.

The default number is 8. I like to increase this number to a total of 64 keep this in mind if running multiple Robocopy jobs simultaneously. There is CPU overhead of opening the source file, opening the destination file, copying the data, closing the source file, and closing the destination file.

Note: this will likely make your system appear sluggish as it is working the CPU decently. With potentially thousands of files to copy, it makes for a less than efficient way to find something that went wrong. If I create a scheduled task of the Robocopy job, I recommend leaving this command out.

By default, the only logging from Robocopy is display to the screen. It will overwrite the file if it already exists. However, when doing this process with a scheduled task, you may want to see all iterations of the run instead of just the most recent.

For especially large file shares, even the log files can grow into the multiple gigabytes if left running for days and splitting them out into daily logs makes a lot of sense. Generally, you really want to see this to make sure skip files are logged. In part 2 of this blog, I will show how to set up a daily Robocopy job with Task Scheduler.