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

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Can you tell us more details of the environment and performance?

2012-02-27 06:48 keltezéssel, Xiaoyi Lu at software írta:
> 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<yang_yi at neusoft.com>  写道：
>> 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 [mailto:nikolay.gar at gmail.com]
>> 发送时间: 2012年2月26日 19:31
>> 收件人: 杨燚
>> 抄送: users at lists.opennebula.org; discuss at lists.opennebula.org
>> 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<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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