Active Binary Sync
If you enable the binary sync, the initial sync will take a little longer (depending on the size of the package and the speed of your Internet connection), but the performance when downloading content is significantly increased, because the content of the library is stored locally. If the sync downloads too much data, you can additionally work with the First Sync Package.(First Sync Package/Implement the FirstSyncPackage)
Inactive Binary Sync
Switching off the binary sync is mandatory for Citrix and terminal servers, because disabling the binary sync reduces the sync load. This reduces the time until empower has performed the initial sync and helps with weak internet connections.
Switching the Binary Sync
What happens when the sync is switched from offline to online?
Content that is already available offline remains available locally and is not deleted during the transition. Content that is already synced offline remains available offline until it becomes obsolete and cleaned up due to content changes.
The changeover changes the metadata on the folders, which changes almost all metadata and triggers a metadata sync on all clients. This can lead to a high server load. Once the clients have all successfully synchronized once after a switchover, the load goes down.
Why do all folders in the library show as online after the switch, even though the content remains available offline?
The display (cloud icon) does not indicate whether an item is already available offline, but whether the contents of a folder should be synchronized offline in advance. Even if a folder is set to online and an element in it is opened, the binary data of this element remains in the local cache as long as it is valid. If an update to this item takes place, the then obsolete binary data is subsequently deleted and the new ones are not directly resynchronized. The same behavior applies when the status of the folder is changed from offline to online.