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Steelhead Appliance Installation and Configuration Guide
Installing and Configuring the Steelhead Appliance
Disabling SMB Signing
The Secure-CIFS feature automatically stops Windows SMB signing. SMB signing prevents the Steelhead
appliance from applying full optimization on CIFS connections and significantly reduces the performance
gain from a Steelhead deployment (SMB-signed sessions support compression and SDR, but render latency
optimization (read-ahead, write-behind unavailable).
With Secure-CIFS enabled, you must consider the following factors:
If the client-side machine has Required signing, enabling the Secure-CIFS feature prevents the client
from connecting to the server.
If the server-side machine has Required signing, the client and the server connect but you cannot
perform full latency optimization with the Steelhead appliance. (Domain controllers default to
Required
.)
To view current SMB signing settings
1.
Connect to the Management Console. For detailed information, see the Steelhead Management Console
User’s Guide.
2.
Navigate to the Configure - Optimization - CIFs page.
Figure 2-14. Configure - Optimization - CIFS page
3. Optimize Connections with Security Signatures (that do not require signing)
is checked by default;
thus SMB signing is disabled on the Steelhead appliance.
