Delay issue with opening\saving files

[tumim]

Hello,

Configuration:
Version: Nas4Free 9.1.0.1 - Sandstorm (revision 847)
Platform OS: FreeBSD 9.1-RELEASE-p5 (kern.osreldate: 901000)
Platform: x64-embedded on Intel(R) Pentium(R) CPU G3420 @ 3.20GHz
RAM: 8Gb
HDD: 2xWD Black Enterprise edition 1.0Tb

The OS is Embedded, installed and loaded from 1Gb flash.
NAS - not in domain, does not dns\dhcp server.
Two disks using ZFS, RAID1 pool.
Using 400Gb Dataset.
10 users with diff. rights.
All workstations OS - - Windows XP sp3.
Within a dataset - around 150Gb doc/xls/pdf/jpg/dwg files.
Network: 100Mb\s.

The issue:
Only 3 of 10 workstations opens\writes all files normally(any sizes forom 20kb-50Mb) within a few seconds. Other 7 workstations opens\writes all files with 10-15 second delay(any sizes from 20kb-50Mb).

What was done:
1. using standard workstation with clean OS installation, firewalls\anti-viruses were disabled:
coping from/to the NAS is perfect (80-90Mb\s) (files from 1Mb to 4Gb),
but the issue with open\write the files is still persist.
2.Has been changed some of the workstation's network parameters:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters -----> DWORD "TcpWindowSize" with value 65535 (decimal).
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters -----> DWORD "Tcp1323Opts" with value 3.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters -----> DWORD "EnablePMTUDiscovery" with value 1.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters -----> DWORD "EnablePMTUBHDetect" with value 1.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters -----> DWORD "TcpNumConnections" with value 10000 (decimal).
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Afd\Parameters -----> DWORD "DefaultReceiveWindow" with value 65535 (decimal).
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Afd\Parameters -----> DWORD "DefaultSendWindow" with value 65535 (decimal).
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\<Interface GUID>
, where <Interface GUID> is a GUID of network card. Network card recognizing by IP. DWORD:
TcpAckFrequency with value 1 ; TcpDelAckTicks with value 0
Increased the quantity of half-open connections to 10000.
Manually added the NAS Зto the hosts file,
but the issue with open\write the files is still persist.
3.Has been changed the NAS parameters:
- added "max mux = 1", for correct open\write of dwg filesв.
- added "smb ports = 139", for choosing between 139 and 445 ports.
- turn off "atime", for increasing speed.
- the buffers were set to 0,
but the issue with open\write the files is still persist.

The current configurations:










Thanks in advance.

[raulfg3]

if you do not have a Local master Browser in your LAN, enable it on Nas4Free and check delay.

[tumim]

The issue was resolved. The issue was with "max mux = 1" parameter. It seems that a few MS workstations working with delay with this option. Removed from conf at all.

PS. By default it is "max mux = 50" I think.

[ChriZathens]

Where is this setting located?

[00Roush]

In NAS4Free this setting would be set on the CIFS/SMB settings page under "Auxiliary parameters"

Here is the quote from the smb.conf manpage http://www.samba.org/samba/docs/man/man ... onf.5.html

max mux (G)

This option controls the maximum number of outstanding simultaneous SMB operations that Samba tells the client it will allow. You should never need to set this parameter.

Default: max mux = 50


00Roush

[ChriZathens]

Oh, OK I see... tumim had passed this settings to auxiliary parameters, but he shouldn't have...
So the default value is OK...