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</o:shapelayout></xml><![endif]--></head><body lang=ZH-CN link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D'>Nikolay<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;font-family:"Verdana","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;font-family:"Verdana","sans-serif";color:#1F497D'> Thank you. I will send you the result tomorrow.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;font-family:"Verdana","sans-serif";color:#1F497D'> I wonder if nfs is widely used in opennebula cloud ? and is the vm running speed acceptable ?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;font-family:"Verdana","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;font-family:"Verdana","sans-serif";color:#1F497D'>David Yang<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;font-family:"Verdana","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt'>发件人<span lang=EN-US>:</span></span></b><span lang=EN-US style='font-size:10.0pt'> Nikolay Gar [mailto:nikolay.gar@gmail.com] <br></span><b><span style='font-size:10.0pt'>发送时间<span lang=EN-US>:</span></span></b><span lang=EN-US style='font-size:10.0pt'> 2012</span><span style='font-size:10.0pt'>年<span lang=EN-US>2</span>月<span lang=EN-US>26</span>日<span lang=EN-US> 19:31<br></span><b>收件人<span lang=EN-US>:</span></b><span lang=EN-US> </span>杨燚<span lang=EN-US><br></span><b>抄送<span lang=EN-US>:</span></b><span lang=EN-US> users@lists.opennebula.org; discuss@lists.opennebula.org<br></span><b>主题<span lang=EN-US>:</span></b><span lang=EN-US> Re: [one-users] question about OpenNebula + NFS performance<o:p></o:p></span></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US>nfsstat from client and nfs server will help:<br><br>1. nfsstat -n -c for client<br>2. nfsstat -n -s for server<br><br>Just for test, do not test it on VM machine , simple copy some file over NFS ( some big file not /dev/null some 5 GB) with time command before test <br><br><br>Nikolay<o:p></o:p></span></p><div><p class=MsoNormal><span lang=EN-US>2012/2/26 </span>杨燚<span lang=EN-US> <<a href="mailto:yang_yi@neusoft.com">yang_yi@neusoft.com</a>><o:p></o:p></span></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>Hi<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US> <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US> I set up virtual machine with OpenNebula2.2 + NFS(NAS Huawei Symantec). And the virtualization environment is rhel6.1 + kvm. But the vm is running very slow. In the vm system, gunzip a gz file takes very long time.<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US> the nfs server(NAS) is suse10 with nfs version 3.<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US> <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US> the nfs client is rhel6.1<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US style='color:red'>mount -t nfs -o timeo=10,noatime,intr,hard,retrans=5 172.16.14.115:/vx/B1ALL /one_images</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US> <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>I tried to install two img systems at the same time on the nfs, the %CPU is high. and the installation progress takes very long too.<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>So I wonder if the nfs can provide better performance for the vm ?<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US>How can I tune the nfs server and client parameters to enhance nfs performance ? Thank you very much.<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US> <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span lang=EN-US><o:p></o:p></span></p></div><p class=MsoNormal><span lang=EN-US style='font-family:"Courier New"'>---------------------------------------------------------------------------------------------------<br>Confidentiality Notice: The information contained in this e-mail and any accompanying attachment(s) <br>is intended only for the use of the intended recipient and may be confidential and/or privileged of <br>Neusoft Corporation, its subsidiaries and/or its affiliates. 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Thank you. <br>---------------------------------------------------------------------------------------------------</span><span lang=EN-US><o:p></o:p></span></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US><br>_______________________________________________<br>Users mailing list<br><a href="mailto:Users@lists.opennebula.org">Users@lists.opennebula.org</a><br><a href="http://lists.opennebula.org/listinfo.cgi/users-opennebula.org" target="_blank">http://lists.opennebula.org/listinfo.cgi/users-opennebula.org</a><o:p></o:p></span></p></div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></body></html>