After  removing the dedup feature, there was something (cant remember  off the 
top of my head) that you should do to the volume ,  optimization  related.

Ill see if i can find it when.i get home

Date: Wed, 24 Jun 2015 14:18:10 -0700
Subject: Re: [NTSysADM] Transfer to file server randomly pauses
From: [email protected]
To: [email protected]

Are the NICs on the VM server Broadcom by any chance?

On Wed, Jun 24, 2015 at 2:13 PM, Daniel Wolf <[email protected]> wrote:








I’m pulling my hair out over a devilish problem that’s holding up a fileserver 
migration.
Any advice desperately appreciated.
 
When you try to transfer files to the VM, the transfer just randomly pauses and 
un-pauses after a few hundred megabytes of each burst. The pauses last around 
15 seconds but can be a minute or more. It’s worse the bigger the file is.

2012 R2 server fully patched with 2 CPU & 5GB of RAM & 60GB system & 800GB 
storage on VMware backed by a SAN.




·        
File transfer dialog on Windows 8 usually bottoms out at 0 bytes/s when this 
happens. Pausing or cancelling transfer on client doesn’t register until it 
un-locks.

·        
Resource Monitor on server shows Disk as no activity when this happens except 
for maybe some random bursts

·        
Happens with robocopy and xcopy as well as native Windows Explorer

·        
Happens connecting from both 2008R2 and Win8.1 with different network paths.


·        
Occurs when transferring to system drive or data storage drive.

·        
NTFS/REFS doesn’t matter on storage drive

·        
SMB signing is off

·        
Absolutely nothing installed on the server. NOTHING. No roles. No extra 
features other than the GUI.

·        
Pauses are worse the bigger the file is.

·        
Data Deduplication and File Resource Monitor used to be installed, but they’ve 
been removed for troubleshooting.

·        
Tried uninstalling SMB 1.0 on server

 
Again, ANY ideas or tips appreciated.
 
Thank you!
 
 


 

 
 
Daniel Wolf
Neopost USA
 







                                          

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