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Can you tell us more details of the environment and performance?<br>
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2012-02-27 06:48 keltezéssel, Xiaoyi Lu@software írta:
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<pre wrap="">According to my experiences, the vm running performance of ONE + NFS
over NAS solution is not high enough. It may be only appropriate for
experiment environment but not production. Just a comment.
在 2012年2月27日 下午1:32，杨燚 <a class="moz-txt-link-rfc2396E" href="mailto:yang_yi@neusoft.com"><yang_yi@neusoft.com></a> 写道：
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<pre wrap="">Nikolay
Thank you. I will send you the result tomorrow.
I wonder if nfs is widely used in opennebula cloud ? and is the vm running
speed acceptable ?
David Yang
发件人: Nikolay Gar [<a class="moz-txt-link-freetext" href="mailto:nikolay.gar@gmail.com">mailto:nikolay.gar@gmail.com</a>]
发送时间: 2012年2月26日 19:31
收件人: 杨燚
抄送: <a class="moz-txt-link-abbreviated" href="mailto:users@lists.opennebula.org">users@lists.opennebula.org</a>; <a class="moz-txt-link-abbreviated" href="mailto:discuss@lists.opennebula.org">discuss@lists.opennebula.org</a>
主题: Re: [one-users] question about OpenNebula + NFS performance
nfsstat from client and nfs server will help:
1. nfsstat -n -c for client
2. nfsstat -n -s for server
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
Nikolay
2012/2/26 杨燚 <a class="moz-txt-link-rfc2396E" href="mailto:yang_yi@neusoft.com"><yang_yi@neusoft.com></a>
Hi
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.
the nfs server(NAS) is suse10 with nfs version 3.
the nfs client is rhel6.1
mount -t nfs -o timeo=10,noatime,intr,hard,retrans=5 172.16.14.115:/vx/B1ALL
/one_images
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.
So I wonder if the nfs can provide better performance for the vm ?
How can I tune the nfs server and client parameters to enhance nfs
performance ? Thank you very much.
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