Re: Samba/FTP slow write fast read

Top Page
Attachments:
Message as email
+ (text/plain)
+ (text/html)
+ (text/plain)
Delete this message
Reply to this message
Author: George Toft
Date:  
To: Main PLUG discussion list
Subject: Re: Samba/FTP slow write fast read
Continuing saga . . .
SMB and FTP from another physical to this virtual run at full speed.
SMB from every Win7 box except this one runs at full speed. The
communications bog down only for SMB/FTP on the physical host to the
VM. Next step is to build a dedicated VMware host. I probably should
have done that to begin with, but was trying to cut down on the number
of physical systems running.

Regards,

George Toft

On 10/28/2012 7:13 AM, Michael Havens wrote:
> thanks for the update!
> :-)~MIKE~(-:
>
>
> On Sat, Oct 27, 2012 at 10:07 PM, George Toft <
> <mailto:george@georgetoft.com>> wrote:
>
>     Further investigation shows it's not FTP nor samba.  It's Windows
>     7 (which I used for Windows file and FTP).  Using smbclient on a
>     Linux box I get 19MB/sec and FTP from Linux I get 32MB/sec.
>      Concurrent with replacing the old file server was the purchase of
>     a new PC.  I guess we know what XP does better than Windows 7.

>
>     Regards,

>
>     George Toft

>
>     On 10/27/2012 6:01 PM, George Toft wrote:

>
>         Spent several hours researching this one - can't find a
>         solution.  I hope someone here can hit me with a clue-by-four.

>
>         CentOS 6.3 64-bit virtual running under VMware 2.0.2 fresh
>         install with FTP/Samba/NFS running.  I copied 500+GB of data
>         from the old computer to the new one using NFS at full network
>         speed (11+ MB/sec).  Life's good.

>
>         Now here it is a day later, and my samba write speed is a
>         blazing 80KB/sec (up from 40KB/s when I started
>         troubleshooting).  I read samba should approach FTP speed and
>         I verified it does - FTP writes to the new machine at about
>         the same speed.  Reads still take place a full speed (now it's
>         on a 1Gbps network) - 33MB/sec. Writes . . . 99.8% slower.  I
>         did not have this problem on the previous samba server (CentOS
>         4.8 32-bit).

>
>         I added memory (it now has 1GB RAM, 1 GB swap) and it has 2
>         CPU's. This had no effect.

>
>         In summary, NFS works at full speed both ways.  Samba/FTP are
>         fast on reads but snail slow on writes.

>
>         My next thought is to install ClearOS, test it, and copy their
>         smb.conf.  Or install CentOS 5.x and see if it has the same
>         problems.

>
>         Any ideas where to look on this one?  smb.conf necessary.

>
>
>     ---------------------------------------------------
>     PLUG-discuss mailing list - 
>     <mailto:PLUG-discuss@lists.plug.phoenix.az.us>
>     To subscribe, unsubscribe, or to change your mail settings:
>     http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss

>
>
>
>
> ---------------------------------------------------
> PLUG-discuss mailing list -
> To subscribe, unsubscribe, or to change your mail settings:
> http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss


---------------------------------------------------
PLUG-discuss mailing list -
To subscribe, unsubscribe, or to change your mail settings:
http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss