Creating and Sharing File
System with NFS
|
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Primary Node
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Second Node
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Third Node
|
|
Host
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Prod.indiandba.com
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Apps1.indinadba.com
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Apps2.indiandba.com
|
|
IP
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192.168.137.10
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192.168.137.20
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192.168.137.30
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Mount Point
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/applprod (Shared)
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/applprod (mounted from primary node)
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/applprod (mounted from primary node)
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Goal:
Here we create shared mount point
(/applprod) on Primary Node and it should be shared across all the nodes. We
can be achieve through NFS (Network File System)
Steps:
1.
In
primary system (prod.indiandba.com), login as root add an entry of the folder
(/applprod) which is being shared in the /etc/exports file as shown below
/applprod 192.168.137.20(rw,sync)
/applprod 192.168.137.30(rw,sync)
Note: The 'rw' indicates that the folder is being shared with read write
permission and 'sync' indicates that target should be synchronized with source
always.
2.
Once
the entry is made, restart the NFS services in the primary node to bring the
changes to effect. as root - /sbin/service nfs restart
3.
In
the 'apps1.indinadba.com' and ‘apps2.indiandba.com’ host machine create the
mount point same as the 'prod.indiandba.com' node. i.e /applprod
4.
As
a root mount the folder to the local folder – mount 192.168.137.10:/applprod
/applprod
5.
To
keep the folder to be mounted even after the secondary node restarts, add a
entry in /etc/fstab of secondary node.
192.168.137.10:/applprod /applprod nfs rw 0 0
