<div dir="ltr"><div>Just notice and would like to share my new finding.<br><br>as i mentioned earlier i am using RAIDz2 and hosted a VM on NFS. so for testing i "SCP" the whole HD image of VM to some other Linux system so that i can learn if the issue is with Drive speed or the issue is with NFS protocol, (of course not a bug with NFS but i have done something wrong in configuring)<br>
<br></div><div>here is the SCP result. the virtual harddisk image size is 32 GB.<br></div><div>i am running this command from OmniOS SSH.<br><br></div><div><br>vm-100001-disk-1.qco 50% |************** | 16461 MB 09:42 ETA<br>
</div><div><br><br></div><div>you can see it copy 16 GB and i confirm that it took 3 to 4 minutes to copy that huge data.<br><br></div><div>it seems fine to me. same RAIDz2 but protocol change (SCP on SSH) so i think the issue is with NFS. not with the Hardware speed/specs limitation.<br>
<br></div><div>any idea please. <br><br></div><div>Thanks,<br></div><div>Myk<br></div><div><br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, Sep 12, 2013 at 2:40 AM, Muhammad Yousuf Khan <span dir="ltr"><<a href="mailto:sirtcp@gmail.com" target="_blank">sirtcp@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div>first of sorry for starting a new thread for same issue explained earlier because. i <br>mistakenly deleted the email. so my apologizes. <br>
<br></div><div>my omniOS server hardware is as under. <br>
</div><div>dual 3.2GHz Processors, 12 GB RAM. dell 490 workstation<br></div><div>4 sata drives set with RAIDz2 <br></div><div>1 40GB very old IDE drive for OmniOS root system<br></div><div></div><div><br>i have 3 servers for testing.<br>
</div><div>1. KVM virtualization server (Proxmox)<br></div><div>2. OmniOS (NFS)<br></div><div>3. Desktop machine<br><br></div><div>all three are connected via 1GB LAN broadcast domain.<br></div><br><div>i have hosted a test VM (windows 2003 server) on NFS and when i am trying to copy the data (2gb File) from VM via Microsoft sharing to a desktop machine. i doing something very abnormal which i can not understand why<br>
<br><div>just FYI : all the virtual machines hosted on KVM (proxmox server)
local harddrives are on mdadm linux raid. and working great. and i see
no issue in copy and pasting data from or to the local VM machines.<br></div><div><br></div></div><div>In attached graphics you will see 2 test of sending 2GB file.<br></div><div>in "snap a.1" for few seconds file transfer stuck at 2 percent and then due to unknown reasons bumps to 15%. and it continues for few seconds and when file reaches the end it again goes down to 3 Percent as you can see in "snap a.2"<br>
<br></div><div>in "snap b.1" you can see it starts at 3% max and for 2 minutes it continues and speed only changes btw 1% to 3%. see in "snap b.2"<br><br></div><div>some says disable sync for testing and see if performance increases, sorry it didnt help me. same thing happens, whether i disable or enable the sync it makes no difference for me<br>
<br></div><div>and Some says to upgrade the RAM which i am already looking but just a part of my confusion when i see vmstat it shows me i have 7GB free RAM<br><br></div><div>is there anyone can please explain me why and what is happening behind all this, the workstation hosting OmniOS is a good machine. why it is doing some thing very unexpected.<br>
<br></div><div>Any advice, suggestion, tip etc. will be highly appreciated.<br></div><div><br></div><div>Thanks <br></div><span class="HOEnZb"><font color="#888888"><div>Myk<br></div><div><br></div></font></span></div></div>
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