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

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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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