[one-users] 答复: question about OpenNebula + NFS performance

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luxiaoyi

  which way do you recommend to set up opennebula cloud in production
environment? 
Is there any way that can support live-migration except nfs ?

-----ÓʼþÔ­¼þ-----
·¢¼þÈË: Xiaoyi Lu at software [mailto:luxiaoyi at software.ict.ac.cn] 
·¢ËÍʱ¼ä: 2012Äê2ÔÂ27ÈÕ 13:48
ÊÕ¼þÈË: Ñî D
³­ËÍ: Nikolay Gar; discuss at lists.opennebula.org; users at lists.opennebula.org
Ö÷Ìâ: Re: [one-users] ´ð¸´: question about OpenNebula + NFS performance

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.

ÔÚ 2012Äê2ÔÂ27ÈÕ ÏÂÎç1:32£¬Ñî D <yang_yi at neusoft.com> дµÀ£º
> 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
>
>
>
>
>
> ·¢¼þÈË: Nikolay Gar [mailto:nikolay.gar at gmail.com]
> ·¢ËÍʱ¼ä: 2012Äê2ÔÂ26ÈÕ 19:31
> ÊÕ¼þÈË: Ñî D
> ³­ËÍ: users at lists.opennebula.org; discuss at lists.opennebula.org
> Ö÷Ìâ: 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 Ñî D <yang_yi at neusoft.com>
>
> 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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--
Best regards,

       ³СÒÚ Xiaoyi LU

Email: luxiaoyi at software.ict.ac.cn
Tel: 86-10-62600920(O)
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