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.