Please, that's a good one. Cesar A.
On May 26, 2017 4:10 PM, "Kurt Buff" <[email protected]> wrote: > I'm on the phone with MSFT now. > > I'll update y'all once I know more. > > Kurt > > On Fri, May 26, 2017 at 3:54 PM, Michael B. Smith <[email protected]> > wrote: > > Time for netmon/wireshark. > > > > -----Original Message----- > > From: [email protected] [mailto:listsadmin@lists. > myitforum.com] On Behalf Of Kurt Buff > > Sent: Friday, May 26, 2017 6:09 PM > > To: ntsysadm > > Subject: Re: [NTSysADM] Very strange problem file server - read vs. write > > > > Multiple workstations. I've migrated the file server to different hosts > (5 in the cluster), and it doesn't seem to make a difference. > > > > Kurt > > > > On Fri, May 26, 2017 at 2:17 PM, elsalvoz <[email protected]> wrote: > >> One, multiple or all workstations? How about server on different host > >> or physicals? > >> > >> Cesar A. > >> > >> On May 26, 2017 2:10 PM, "Michael B. Smith" <[email protected]> > wrote: > >>> > >>> Without a trace I can't be sure. But it seems likely. > >>> > >>> Have you also verified that the link is negotiating to the highest > >>> speed available and that it is error free? > >>> > >>> -----Original Message----- > >>> From: [email protected] > >>> [mailto:[email protected]] On Behalf Of Kurt Buff > >>> Sent: Friday, May 26, 2017 4:04 PM > >>> To: ntsysadm > >>> Subject: Re: [NTSysADM] Very strange problem file server - read vs. > >>> write > >>> > >>> No, we have not. It's required for some older machines. > >>> > >>> FWIW, the client's I'm testing with are Win10 1607. > >>> > >>> I presume that your implication is that turning it off would speed > >>> things up? > >>> > >>> Kurt > >>> > >>> On Fri, May 26, 2017 at 12:33 PM, Michael B. Smith > >>> <[email protected]> > >>> wrote: > >>> > Have you disabled smb1? > >>> > > >>> > -----Original Message----- > >>> > From: [email protected] > >>> > [mailto:[email protected]] On Behalf Of Kurt Buff > >>> > Sent: Friday, May 26, 2017 3:20 PM > >>> > To: ntsysadm > >>> > Subject: [NTSysADM] Very strange problem file server - read vs. > >>> > write > >>> > > >>> > All, > >>> > > >>> > I have a 2012R2 file server running as a VM on vSphere 6.0. > >>> > > >>> > Here's what I'm seeing: > >>> > > >>> > Copy large file (win7 ISO) from file server to workstation, I get > >>> > roughly 12-13Mbytes/second, wired or wireless. > >>> > > >>> > Copy that file from workstation to server over a wireless > >>> > connection, same speed - 12-13Mbytes/second > >>> > > >>> > Copy that file from workstation to server over wired connection, > >>> > speed degrades to 1Mbyte/second or less > >>> > > >>> > Copy that file to another 2012R2 VM on the same host on the same > >>> > SAN volume (our print server), and speeds are 12-13Mbytes/second > >>> > for both wired and wireless. > >>> > > >>> > I've made sure that the following are disabled: RSS, atime, 8.3 > >>> > filename generation, TCP Chimney. > >>> > > >>> > RAM and CPU utilization on this machine are well within limits. > >>> > > >>> > I'm thoroughly stumped. > >>> > > >>> > Anyone have pointers for me? I'm about to raise a case with MSFT. > >>> > > >>> > Kurt > >>> > > >>> > > >>> > >>> > >> > > > > > > >
