Clustered Data ONTAP 8.2 and later supports the SMB 3.0 protocol on Storage Virtual Machines (SVMs) with FlexVol volumes. SMB 3.0 provides important enhancements, including enhancements that facilitate transparent failover and giveback and other nondisruptive operations.
Support for SMB 3.0 is enabled automatically when you create a CIFS server.
A new share property that, along with persistent handles, allows SMB clients that are connected to shares that are configured to use the continuously available share property to transparently reconnect to a CIFS server following disruptive events such as failover and giveback operations.
Enables clients to transparently reconnect to disconnected SMB sessions after certain disruptive events. A persistent handle is preserved after a disconnection. Persistent handles block other file opens while waiting for a reconnection. Along with the continuously available share property, persistent handles provide support for certain nondisruptive operations.
Remote VSS (Volume Shadow Copy Service) for SMB provides the functionality that allows VSS-enabled backup services to create application-consistent volume shadow copies of VSS-aware applications that access data stored over SMB 3.0 shares.
Enables a CIFS server providing SMB shares to Hyper-V and SQL application servers to promptly notify the application servers about network failures.
ODX enables data transfers within or between ODX-enabled storage servers without transferring the data through the Windows client.
Provides enhanced functionality, including smaller, variable-sized content segments, which increases the reuse of existing cached content.
Provides enhanced security for client SMB connections by providing end-to-end encryption of SMB data on the network.
For more information, see the SMB 3.0 protocol specification.