On 6/18/2016 12:09 AM, alireza baghery wrote:

i have two server *CentOS 6.5* and *CentOS 5.9 * i have one*SAN Storage* on both servers but when i create file one of server (example Centos 6.5) Other Sever (Centos 5.9) do not see file and i must*umount* Disk to seeing files new how solve this problem format disk *EXT3*

you can't share SAN block storage like that, unless its some special sharable cluster file system (ex*fs is not!). Frankly, I'm really surprised you haven't corrupted this file system already.

You want NAS, not SAN for this. Use NFS for sharing files between multiple Linux/Unix systems.