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Smart Cache - Known Limitations


Renaming a synced folder as an Admin or Power User with full permissions on the cloud

Renaming a folder that is configured for sync to a Smart Cache device will deselect the folder and respective sub-folders from being synced to Smart Cache until the next sync cycle.

Canonical renaming a synced folder using Egnyte Desktop App

Renaming a folder that is configured for sync to a Smart Cache device to its canonical variate will result in an empty folder listing on Mac clients.

Administrative User password change

Changing the password of the Admin/service account user in the cloud will invalidate the auth token and will require Administrators to reauthorize the Smart Cache device to get Smart Cache back to a working state. Administrators are recommended to follow the best practice and use service accounts and avoid changing passwords.

Degraded performance on Hyper-V with Broadcom adapters

Hyper-V virtual machines of Smart Cache (VMs) hosted on Windows Server 2012 (R2) server may exhibit slow network performance if Broadcom network adapters are installed in the host. This can happen if Virtual Machine Queue (VMQ) is enabled on the physical network adapter used by the VMs.

The known workaround is to disable VMQ on the affected network adapters or change the MAC addresses of the corresponding virtual switches. However, it is possible that Broadcom has released an update to fix the issue since this article was written. Therefore, the first step in troubleshooting the issue should be to ensure that the Broadcom adapter driver and firmware are up to date on the Hyper-V host.

Folder move operation

Folder move operations between synced and un-synced folders when a Desktop App client is Smart Cache connected is not supported in this version of the release. Users shall experience the following symptoms while trying these operations. 

Scenario 1: 

Moving a sub-folder that is synced to Smart Cache under a folder that is in Egnyte using Egnyte Desktop Application (Folder synced to Smart Cache -> Folder in Egnyte)

Symptom: The user is prompted with a Move Failed for Audit Test message.

Scenario 2: 

Moving a sub-folder that is in Egnyte to a folder that is synced to Smart Cache using Egnyte Desktop Application (Folder to Egnyte  -> Folder synced to Smart Cache)

Symptom: In very rare scenarios where there are a lot of sub-folders/files under the moved folder it can a few seconds or minutes for the folder to synchronize down to Smart Cache and be visible to the user.

Smart Cache in Offline Mode

Smart Cache can operate even when it loses network connection with the cloud. Desktop App users can continue to open and modify files on the Smart Cache device and all their file operations get saved to Smart Cache. Smart Cache in Offline Mode serves lock requests locally so that it allows one and only one user to modify a file at a given time. File and folder modifications are synchronized with the cloud when network connectivity to the cloud is restored. 

For security reasons, Desktop App users can connect to Smart Cache up to 30 days of network downtime. 


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