Re: Samba/FTP slow write fast read

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Author: George Toft
Date:  
To: Main PLUG discussion list
Subject: Re: Samba/FTP slow write fast read
proxmox rox! Thanks for the tip.

Regards,

George Toft

On 10/31/2012 4:49 PM, JD Austin wrote:
> I second the Proxmox VE recommendation; expecially if you use the
> virtio drivers.
> http://www.linux-kvm.org/page/WindowsGuestDrivers/Download_Drivers
> If you must have USB support then go with Virtualbox though.
>
>
> On Wed, Oct 31, 2012 at 4:38 PM, Eric Shubert <
> <mailto:ejs@shubes.net>> wrote:
>
>     While I still have a couple hosts running VMWare Server 2.0.2 on
>     CentOS 5.x, I've given up that ship. I think you're walking on
>     thin ice running VMWare Server 2 on just about anything these
>     days, especially Windoze. I doubt you'll find much help solving
>     any problems with Server 2, given that VMWare has dropped it as I
>     expect most users have also by now.

>
>     I highly recommend running Proxmox VE as a virtualization host
>     platform. It's similar to VMware Server in many ways, but I've
>     found it even easier to use. While it requires a cpu that supports
>     virtualization, that's not so hard to find these days.

>
>     We're beginning to document the process of building a Tagcose
>     server based on PVE. See http://tagcose.com for details. We meet
>     monthly at UAT (2nd Sat) to work on Tagcose development. You're
>     welcome to join us if you'd like.

>
>     -- 
>     -Eric 'shubes'

>
>
>
>
>     On 10/28/2012 01:13 PM, George Toft wrote:

>
>         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>
>             <mailto:george@georgetoft.com
>             <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.

>
>
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