Share Virtual volume on host set synchronize problem

[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

[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.

[ambozoo]

Ok thanks a lot, i will look with sysadmin to propose a cluster solution.

[Richard Siemers]

Here is some additional basic information:

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