[Linux-cluster] RE: NFS Issue in Cluster??
Singh Raina, Ajeet
ajeet.singh.raina at logica.com
Thu Aug 14 13:14:27 UTC 2008
Just be more Clear,
I have two Cluster Nodes: Edwin1 and Edwin2.
Edwin2 is NFS Server while Edwin1 is NFS Client.
Anyway,NFS will be running on Active/Active ie both are running NFS
On Edwin2 we can see the following configuration:
# df -h
10.227.167.5:/usr/bang-test/xml on /var/tmp/kunal type nfs
/dev/sdj1 on /usr/bang-test type ext3 (rw)
[[[[Note: As for Now /dev/sdj1 which is a shared storage partition is
right now mounted on
Edwin2.As We do Clusvcadm -r bang -m edwin1 command,it will relocate to
I have mounted /usr/bang-test/xml to /var/tmp/kunal as seen above.
Corresponding to that I made the entry under NFS Mount on LUCI as:
NFS Mount Resource Configuration
Name ---> NFSMount
Mount point ---> /var/tmp/kunal
Host --> 10.227.169.3
Export path --> 10.227.167.5:/usr/bang-test/xml
NFS version NFS3 -> <Default>
On Edwin1 Now, The mount point /dev/sdj1 couldnt be seen.(After failover
it will be seen)
206G 360M 195G 1% /var/tmp/kunal
Now When I have written another Service Script called bang which mean
now I have two Script
in hand.I have added both to the cluster.
As you see output of Clustat:
Member Status: Quorate
Member Name Status
------ ---- ------
edwin1-cluster Online, rgmanager
edwin2-cluster Online, Local, rgmanager
Service Name Owner (Last) State
------- ---- ----- ------ -----
bang edwin2-cluster started
NFSCluster edwin1-cluster started
So Now Both the service are added.When I now perform failover it doesnt
Is there anything mischievious I am doing?
From: Singh Raina, Ajeet
Sent: Thursday, August 14, 2008 6:03 PM
To: 'linux clustering'
Cc: 'piyush yaduvanshi'
Subject: NFS Issue in Cluster??
I have a doubt and I hope you people gonna Help me with.
I have been stucked with including NFS Resource and Services.
Let me tell you....I want to run NFS Service on one of the red hat
cluster node .ON failover to the second cluster node the NFS should come
But I donno why the way to configure that has been so complicated
All I can see is:
1. NFS Mount
Name - Create a symbolic name for the NFS mount.
Mount Point - Choose the path to which the file system
resource is mounted.
Host - Specify the NFS server name.
Export Path - NFS export on the server.
NFS version - Specify NFS protocol:
o NFS3 - Specifies using NFSv3 protocol. The default setting is
o NFS4 - Specifies using NFSv4 protocol.
Options - Mount options. For more information, refer to
the nfs(5) man page.
Force Unmount checkbox - If checked, forces the file
system to unmount. The default setting is unchecked. Force Unmount kills
all processes using the mount point to free up the mount when it tries
Name - Enter a name for the NFS client resource.
Target - Enter a target for the NFS client resource.
Supported targets are hostnames, IP addresses (with wild-card support),
Options - Additional client access rights. For more
information, refer to the exports(5) man page, General Options
Name - Enter a name for the NFS export resource.
Please Help me understanding what's the difference between NFS Mount,NFS
Export and NFS Client in this context.
I just want to do failover ie. When one node has NFS running then on
being stopped NFS Should be starting at the other end.
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