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High Availability for NFS

Posted on 2016-07-28
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Last Modified: 2016-08-05
Hello All,

I need to purpose a NFS solution for a project that I'm working on and the requirements must met:
  • The NFS solution must be based on Linux - no cost\licenses
  • No physical servers required - It can be deployed on VM
  • There is no need for shared disk like RHCS
  • The storage must be highly available

I'm open to any suggestions.
Thanks.
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Question by:TomerLeibovich
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13 Comments
 
LVL 78

Expert Comment

by:David Johnson, CD, MVP
ID: 41732501
Impossible to satisfy all of your requirements.
2
 

Author Comment

by:TomerLeibovich
ID: 41732503
Why is that?
OpenFiler for example cannot be configured with those requirements?
What are the limitations?
0
 
LVL 78

Expert Comment

by:David Johnson, CD, MVP
ID: 41732516
you need some sort of shared disk to make the storage highly available.
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Author Comment

by:TomerLeibovich
ID: 41732518
Does GFS cluster also requires shared disk?
0
 
LVL 78

Expert Comment

by:David Johnson, CD, MVP
ID: 41732534
Yes it requres a shared disk i.e. isci it also requires block level access there are further requirements i.e.
a failed node must not become available  while another node is recovering the journal for the failed node
https://en.wikipedia.org/wiki/GFS2
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Author Comment

by:TomerLeibovich
ID: 41732797
What about gluster?
Does it also requires shared disk?
0
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LVL 117
ID: 41732814
Any version of Linux will provide you with NFS
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Author Comment

by:TomerLeibovich
ID: 41732833
Andrew, I know but I want the NFS path to be HA so it will tolerate failure of server.
0
 
LVL 117
ID: 41732840
Linux Cluster (http://www.linux-ha.org/wiki/Main_Page) , or put the Linux Server on VMware HA.
0
 
LVL 78

Expert Comment

by:David Johnson, CD, MVP
ID: 41734101
Highly available always requires something being shared. This way if your compute node goes down then the remaining compute node still has access to the data.
0
 
LVL 37

Expert Comment

by:Gerwin Jansen
ID: 41734794
Where would you run the (2) Linux VM's? If you run them on the same host and the host fails then you have no storage (you could use local storage on the host as shared storage). If you run the VM's on separate hosts then you need a third host with the (shared) storage. How do you intend to spend the budget that you have? You do have a budget right?
0
 

Accepted Solution

by:
TomerLeibovich earned 0 total points
ID: 41736807
The solution that we've decided to use is GlusterFS.
No shared drive, cluster can tolerate failure of hosts without losing the data.
Can be virtual - yes
Need shared drives - No
Free - Yes
Fault tolerance and HA - Yes.

https://gluster.readthedocs.io/en/latest/Install-Guide/Overview/
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Author Closing Comment

by:TomerLeibovich
ID: 41743969
GlusterFS is the best solution that I needed.
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