User Guide

Advanced SMB share properties
You can configure the following advanced SMB share properties when you create an SMB share or change its properties:
Table 5. Advanced SMB Properties
Option Description
Continuous Availability Gives host applications transparent, continuous access to a share following a failover of
the NAS server on the system (with the NAS server internal state saved or restored
during the failover process).
NOTE: Enable continuous availability for a share only when you want to use
Microsoft Server Message Block (SMB) 3.0 protocol clients with the specific share.
Protocol Encryption Enables SMB encryption of the network traffic through the share. SMB encryption is
supported by SMB 3.0 clients and above. By default, access is denied if an SMB 2 client
attempts to access a share with protocol encryption enabled.
You can control this by configuring the RejectUnencryptedAccess registry key on the
NAS Server. 1 (default) rejects non-encrypted access and 0 allows clients that do not
support encryption to access the file system without encryption.
Access-Based Enumeration Filters the list of available files and directories on the share to include only those to
which the requesting user has read access.
NOTE: Administrators can always list all files.
Branch Cache Enabled Copies content from the share and caches it at branch offices. This allows client
computers at branch offices to access the content locally rather than over the WAN.
BranchCache is managed from Microsoft hosts.
Offline Availability Configures the client-side caching of offline files:
● Manual: Files are cached and available offline only when caching is explicitly
requested.
● Programs and files opened by users: All files that clients open from the share are
automatically cached and available offline. Clients open these files from the share
when they are connected to it. This option is recommended for files with shared
work.
● Programs and files opened by users, optimize for performance: All files that
clients open from the share are automatically cached and available offline. Clients
open these files from the share's local cache, if possible, even when they are
connected to the network. This option is recommended for executable programs.
● None: Client-side caching of offline files is not configured.
20 Create file systems and SMB shares