Corruptions seen with diskercise.exe tool

[Volker Lendecke]

On Thu, Jun 16, 2016 at 11:52:29AM -0700, Jeremy Allison wrote:
> On Thu, Jun 16, 2016 at 10:33:22AM -0700, sandeep nag wrote:
> > I am seeing read corruption with diskercise.exe tool on a CIFS share
> > mounted on  windows server 2012 R2 datacenter operating system client
> > 
> > Samba share is on samba 3.6.25 code base.
> > [image: Inline image 1]
> > 
> > 
> > Any thoughts on why this corruption is happening?
> >  1. Is it because of packet transmission issue in other layers like
> > tcp/sessions layer or so?
> 
> No.

It can't be due to tcp retransmissions, but it could well be due to
glitches in cables and switches. To properly detect that kind of
corruption, you might try to set "server signing = mandatory". It will
slow down operations, but it will cryptographically check the network
traffic.

Volker

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