Hy,
Thanks the answer, i come up with new details about my configuration. Yes i have two host initiators that are connected to one target using one LUN. After the connection is established it gives me on every host (initiator) a disk "sdb1" that i mount to a directory using ext3 file system. When i write some data to the disk that i mounted on each initiator, data is replicated to the target, i know this because i seen on wireshark messages that write data to the target and read it again. The problem is that: what i write on one initiator is not seen by the other initiator, but if i umount the disks on initiators and i mount them again data written on one is seen on the other initiator.
I wait for any suggestions to resolve this..Thanks to help me SJ
Unfortunately, to implement such scenario you need a SAN file system, and we do not have that, means; we do not support writing to the same LUN from multiple Initiators.