Indirectly, yes... I've tried this against our print server, on the same host, and the speeds are very acceptable, both wired and wireless.
It's just the file server that is giving me this problem. One of the machines I've tried this from is a laptop that sits outside our firewall, on the same switch, - it's consuming one of our public IPs, getting internal access via DirectAccess. Same behavior - slow writes to file server, acceptable writes to print server. On Fri, May 26, 2017 at 2:07 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 >> >> > >
