[Linux-cluster] RHEL/CentOS-6 HA NFS Configuration Question
emmanuel segura
emi2fast at gmail.com
Tue May 15 08:21:29 UTC 2012
If look well, you are missing nfsexport in the second services
2012/5/14 Randy Zagar <zagar at arlut.utexas.edu>
> I have an existing CentOS-5 cluster I've configured for High-Availability
> NFS (v3). Everything is working fine. I've included a simplified
> cluster.conf file below.
>
> I originally started with 3 file servers that were not clustered. I
> converted to a clustered configuration where my NFS Clients never get
> "stale nfs" error messages. When a node failed, all NFS exports (and their
> associated IP address) would move to another system faster than my clients
> could time out.
>
> I understand that changes to the portmapper in EL6 and NFSv4 make it much
> more difficult to configure HA-NFS and, so far, I have not seen any good
> documentation on how to configure a HA-NFS configuration in EL6.
>
> Does anyone have any suggestions, or links to documentation that you can
> send me?
>
> -RZ
>
> p.s. Simplified cluster.conf file for EL5...
>
> <?xml version="1.0"?>
> <cluster alias="ha-nfs-el5" config_version="357" name="ha-nfs-el5">
> <fence_daemon clean_start="0" post_fail_delay="0" post_join_delay="3"/>
> <clusternodes>
> <clusternode name="node01.arlut.utexas.edu" nodeid="1" votes="1">
> <fence>
> <method name="1">
> <device name="node01-ilo"/>
> </method>
> <method name="2">
> <device name="sanbox01" port="0"/>
> </method>
> </fence>
> </clusternode>
> <clusternode name="node02.arlut.utexas.edu" nodeid="2" votes="1">
> <fence>
> <method name="1">
> <device name="node02-ilo"/>
> </method>
> <method name="2">
> <device name="sanbox02" port="0"/>
> </method>
> </fence>
> </clusternode>
> <clusternode name="node03.arlut.utexas.edu" nodeid="3" votes="1">
> <fence>
> <method name="1">
> <device name="node03-ilo"/>
> </method>
> <method name="2">
> <device name="sanbox03" port="0"/>
> </method>
> </fence>
> </clusternode>
> </clusternodes>
> <cman/>
> <fencedevices>
> <fencedevice agent="fence_sanbox2" ipaddr="sanbox01.arlut.utexas.edu" login="admin" name="sanbox01" passwd="password"/>
> <fencedevice agent="fence_sanbox2" ipaddr="sanbox02.arlut.utexas.edu" login="admin" name="sanbox02" passwd="password"/>
> <fencedevice agent="fence_sanbox2" ipaddr="sanbox03.arlut.utexas.edu" login="admin" name="sanbox03" passwd="password"/>
> <fencedevice agent="fence_ilo" hostname="node01-ilo" login="Administrator" name="node01-ilo" passwd="DUMMY"/>
> <fencedevice agent="fence_ilo" hostname="node02-ilo" login="Administrator" name="node02-ilo" passwd="DUMMY"/>
> <fencedevice agent="fence_ilo" hostname="node03-ilo" login="Administrator" name="node03-ilo" passwd="DUMMY"/>
> </fencedevices>
> <rm>
> <failoverdomains>
> <failoverdomain name="nfs1-domain" nofailback="1" ordered="1" restricted="1">
> <failoverdomainnode name="node01.arlut.utexas.edu" priority="1"/>
> <failoverdomainnode name="node02.arlut.utexas.edu" priority="2"/>
> <failoverdomainnode name="node03.arlut.utexas.edu" priority="3"/>
> </failoverdomain>
> <failoverdomain name="nfs2-domain" nofailback="1" ordered="1" restricted="1">
> <failoverdomainnode name="node01.arlut.utexas.edu" priority="3"/>
> <failoverdomainnode name="node02.arlut.utexas.edu" priority="1"/>
> <failoverdomainnode name="node03.arlut.utexas.edu" priority="2"/>
> </failoverdomain>
> <failoverdomain name="nfs3-domain" nofailback="1" ordered="1" restricted="1">
> <failoverdomainnode name="node01.arlut.utexas.edu" priority="2"/>
> <failoverdomainnode name="node02.arlut.utexas.edu" priority="3"/>
> <failoverdomainnode name="node03.arlut.utexas.edu" priority="1"/>
> </failoverdomain>
> </failoverdomains>
> <resources>
> <ip address="192.168.1.1" monitor_link="1"/>
> <ip address="192.168.1.2" monitor_link="1"/>
> <ip address="192.168.1.3" monitor_link="1"/>
> <fs device="/dev/cvg00/volume01" force_fsck="0" force_unmount="1" fsid="49388" fstype="ext3" mountpoint="/lvm/volume01" name="volume01" self_fence="0"/>
> <fs device="/dev/cvg00/volume02" force_fsck="0" force_unmount="1" fsid="58665" fstype="ext3" mountpoint="/lvm/volume01" name="volume01" self_fence="0"/>
> <fs device="/dev/cvg00/volume03" force_fsck="0" force_unmount="1" fsid="61028" fstype="ext3" mountpoint="/lvm/volume01" name="volume01" self_fence="0"/>
> <nfsclient allow_recover="1" name="local-subnet" options="rw,insecure" target="192.168.1.0/24"/>
> </resources>
> <service autostart="1" domain="nfs1-domain" exclusive="0" name="nfs1" nfslock="1" recovery="relocate">
> <ip ref="192.168.1.1">
> <fs __independent_subtree="1" ref="volume01">
> <nfsexport name="nfs-cvg00-brazos02">
> <nfsclient name=" " ref="local-subnet"/>
> </nfsexport>
> </fs>
> </ip>
> </service>
> <service autostart="1" domain="nfs2-domain" exclusive="0" name="nfs2" nfslock="1" recovery="relocate">
> <ip ref="192.168.1.2">
> <fs __independent_subtree="1" ref="volume02">
> <nfsexport name="nfs-sdd01-data02">
> <nfsclient name=" " ref="local-subnet"/>
> </nfsexport>
> </fs>
> </ip>
> </service>
> <service autostart="1" domain="nfs3-domain" exclusive="0" name="nfs3" nfslock="1" recovery="relocate">
> <ip ref="192.168.1.3">
> <fs __independent_subtree="1" ref="volume03">
> <nfsclient name=" " ref="local-subnet"/>
> </nfsexport>
> </fs>
> </ip>
> </service>
> </rm>
> </cluster>
>
>
> --
> Randy Zagar Sr. Unix Systems Administrator
> E-mail: zagar at arlut.utexas.edu Applied Research Laboratories
> Phone: 512 835-3131 Univ. of Texas at Austin
>
>
>
>
> --
> Linux-cluster mailing list
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>
--
esta es mi vida e me la vivo hasta que dios quiera
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