Page 1 of 1

Share Virtual volume on host set synchronize problem

Posted: Mon Jan 26, 2015 7:20 am
by ambozoo
Hello, I monitored 3 PAR SAN, the develloper team ask me to create a virtual volume on san and share it to two hosts, then i create hosts set (2 hosts) and export virtual volume on these hosts. but when i create file on volume exported to one host, this modification is not visible to the second host, to force it i unmount volume exported on second host. they want to see the same information placed to virtual volume on the two host. this synchronization will confirm the developper that load balancing can be real. thanks to tell me if synchronization is possible and tell me whats need configuration 3 par or host

Re: Share Virtual volume on host set synchronize problem

Posted: Mon Jan 26, 2015 8:25 am
by JohnMH
What you are trying to do is not possible, You need cluster aware filesystem that can handle lock management. simply exporting the same volume to two hosts without a clustered filesystem will lead to data corruption.

In this case your problem is at the file system layer on the host.

Re: Share Virtual volume on host set synchronize problem

Posted: Mon Jan 26, 2015 8:52 am
by ambozoo
Ok thanks a lot, i will look with sysadmin to propose a cluster solution.

Re: Share Virtual volume on host set synchronize problem

Posted: Tue Jan 27, 2015 12:35 am
by Richard Siemers
Here is some additional basic information:

http://en.wikipedia.org/wiki/Clustered_file_system