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

[Xiaoyi Lu@software]

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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-- 
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       ³СÒÚ Xiaoyi LU

Email: luxiaoyi at software.ict.ac.cn
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