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Transferring data: Difference between revisions
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To synchronize or "sync" files (or directories) stored in two different locations means to ensure that the two copies are the same. Here are several different ways to do this. | To synchronize or "sync" files (or directories) stored in two different locations means to ensure that the two copies are the same. Here are several different ways to do this. | ||
===Globus | ===Globus transfer=== <!--T:7--> | ||
We find Globus usually gives the best performance and reliability. | We find Globus usually gives the best performance and reliability. | ||
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| File size is different || A quick test. If the file size has changed then its contents must have changed, and it will be re-transferred. | | File size is different || A quick test. If the file size has changed then its contents must have changed, and it will be re-transferred. | ||
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| Modification time is newer || This will check the file's recorded modification time and only transfer the file if it is newer on the source than the destination. If you want to depend on this it is important to check the "preserve source file modification times" option when initiating a Globus | | Modification time is newer || This will check the file's recorded modification time and only transfer the file if it is newer on the source than the destination. If you want to depend on this it is important to check the "preserve source file modification times" option when initiating a Globus transfer. | ||
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