Does anyone have any experience with SMB signing??
We recently applied a DEBUG version of DoT 6.5.3 to our F760 in order to take advantage of SMB signing - a feature that won't be available until a later release of DoT 7.x - which won't be available for the F760's.
With the SMB signing turned on we are seeing a much higher load on the filer's CPUs. NetApp analyzed some Performance Data and say that the SMB signing module is adding a 30% load to our FILER CPUs.
What would you think? Is SMB signing that CPU intensive or would you think it could be sloppy code?? The performance hit is soo drastic I really have a hard time believing it is anything but bad coding (or maybe a little of both).
NetApp Support's solution was to turn off SMB signing. Of course they were not thinking at all when they said that - because why would anyone apply a DEBUG release of an OS whose only function was to add SMB signing if they did not need SMB signing????
Fortunately we have a new filer waiting for a data migration ... but I have serious concerns as to what this is going to do to my new filer. What does a 30% CPU load increase translate to on a FAS960?? ... 10% ... 15%?? How soon before I have to buy another FILER??
I don't want to drop this ... but NetApp doesn't want to pursue any resolution other than new hardware.
Anyway ... does anyone have any comments / suggestions??
- Scott W.