This error message was introduced in Resilio Active Everywhere Platform 4.0.0 and is related to the File policy functionality.
Recording of files' access time is not enabled on the Windows OS where the Agent is installed. Cache cleanup policy may work unexpectedly.
The error indicates that the Windows OS does not allow updating access time for the files. File access time update is required for the Resilio Agents to manage the cached files in File cache and Hybrid jobs.
The Agent sets the error during job initialization or agent startup. The Agent checks the file access time updates periodically and may reset the error once it's fixed. Agent service restart also initiates recheck.
By default, the Windows server has file access time disabled. To check and modify it, open regedit.exe and navigate to the keyComputer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem\NtfsDisableLastAccessUpdate
The valid values for the key are:
80000000 (hex) = User Managed, Last Access Updates Enabled
80000001 (hex) = User Managed, Last Access Updates Disabled
80000002 (hex) = System Managed, Last Access Updates Enabled
80000003 (hex) = System Managed, Last Access Updates Disabled
Set it to 80000000 with hexadecimal base to allow NTFS file system to update access time. 80000002 also means that changes are allowed.
Error code SE_FS_ATIME_UPDATE_DISABLED