<br><br><div class="gmail_quote">On Thu, Jan 19, 2012 at 1:30 PM, Pieter De Wit <span dir="ltr"><<a href="mailto:pieter@insync.za.net">pieter@insync.za.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">Hi,<br>
<br>
I would at least try a newer version. Since you have that shiny box
there, firing up another VM won't be a problem. I am thinking 11.10,
basic server install, mount smb, try.<br>
<br>
Below is from a time long long ago and a land far far away...(more
for history than anything else)<br>
I do however recall a "bug" in Samba...I can't recall the exact
details and this will hurt any Windows Sys Admin (I myself have
ticked off over 10 years as one :) ) Samba is sending the replies
back to quickly...I can't remember the exact details of the packets
etc, but there was a config file option intro'ed to fix this. "2"
was our magic number.<br>
</><br>
<br>
While searching for the above.....I do seem to recall a lot of
people complaining about Samba, as a server, only serving up
30meg/sec, might be tied to the above... Can you clear up which is
the server you are copying the file from (Windows "with 2TB
lun"-> Linux local disk) ? <br>
<br>
The other "issue" might be local disks...I have noticed that my
local disk access has turned quite shocking...Adaptec SATA raid only
giving me 25-28 meg/sec....<br>
<br>
A way around the above is the following:<br>
<br>
d if=/mnt/smb/14gig.mkv of=/dev/null bs=4096<br>
<br>
Increase the bs to higher and higher and see what works. If you
would like to monitor the progress of the above command, run this<br>
<br>
dd if=/mnt/smb/14gig.mkv bs=4096 | pv | dd of=/dev/null bs=4096<br>
<br>
Replace /mnt/.... with the correct mount point.<br>
<br>
If the list prefers, we can take this off list as it doesn't really
cover myth, but rather Samba. Happy to post the outcome thou.<br>
<br>
Cheers,<br>
<br>
Pieter<br>
</div><br></blockquote><div><br>Thanks Pieter, some of that commandline-fu is exactly what I'm looking for while testing.<br><br>You're right, I admit I didn't even think of spinning up a latest and greatest Ubuntu VM for testing. I'll try that first.<br>
<br>As far as testing goes, My Windows workstation is a Core i7 Optiplex. All transfers for the sake of a baseline were done from here. I simply dragged and dropped and watched what Windows told me the speed was, and let it go to at least 50% before canceling. <br>
<br>I tried copying the mkv from my Windows VM first. I then tried all kinds of options like ubuntu to ubuntu etc, but for the sake of troubleshooting, I tried copying the mkv up to my MBE vm, which currently has its virtual disks on the ESXi's local RAID 5. Actually, I didn't even think of that till I just typed this, I'll throw a virtual disk at that box on the Xserve array and see if it makes a difference.<br>
<br>I then tried copying the mkv to my slave backend and had the same 30MB/second speed. I tried grabbing a large recording off the slave be and dropping it on the WIndows workstation; same speed.<br><br>Off to do more testing! If this is cluttering the list please let me know, I just thought that people here would be knowledgeable on the subject.<br>
</div></div>