Differences

This shows you the differences between two versions of the page.

--- windowstools/clouddrive/troubleshooting [2020_07_31 20:36] – [Cache Information] steven
+++ windowstools/clouddrive/troubleshooting [2020_07_31 20:44] – [Cloud Drive for Windows Troubleshooting] steven
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 Return to [[windowstools/clouddrive]]
-This page provides a deeper drive into how the Cloud Drive works to enable tuning for specific specific workloads and workflows as well as troubleshooting problems. Please read the general overview on the [[windowstools/clouddrive]] first.
+This page provides a deeper drive into how the Cloud Drive works to enable tuning for specific specific workloads and workflows as well as troubleshooting problems. Please read the general overview on the [[windowstools/clouddrive]] and the [[clouddrive/win/faq]].
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+## File Download
+When a file is first opened the drive downloads the entire file into a local cache folder. For larger files (100s MB) some older applications may appear to freeze while the file is being downloaded.
+In addition to downloading the file, the Cloud Drive also asks the File Fabric to lock it.
+As the application reads data from the file the drive is providing this information from the local copy in the cache. When the application is finished it saves the file.
+The Cloud Drive unlocks the file when it is saved.
+The file stays in the local cache even when saved. If a file is opened a second time the drive checks to see if the cached version of the file is still the latest. It will only download a new copy if that version changed.
+The cache folder location can be browsed and changed through settings.  Do not open or change files in the cache.
+## Drive Uploader
+When a file is saved by an application, changes are made to the cached file. Only when this is complete will the file be uploaded to the File Fabric.
+File uploading occurs through another process, the Drive Uploader. Upload status can be monitored through “Manage Uploads”.  Historical upload activity can be seen through the drive logs.
+As files are actively uploaded the Drive Uploader window appears if it’s not already open. It will close when uploads are complete.  This behaviour can be disabled by selecting “Hide uploads”.
+The uploader can upload up to nine files at the same time. This can be changed under Settings.
+If M-Stream is available large files are split into parts and uploaded in parallel as well.
+If an upload fails, the drive will show a dialog at the bottom of the screen. The error can also be seen in the Drive Uploader window or the logs (if they are enabled). The Uploader will make several attempts to upload a file if the error is recoverable (e.g. network failure or server retry error). You can retry or remove uploads through the Drive Uploader window.