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[Linux-cluster] iSCSI and GFS



Hello,

I have two scenarii:

1/ an iSCSI SAN accessed by an Open-iSCSI initiator (namely t1) wich provides iSCSI-target (IET) to two GFS Cluster nodes. (with DLM) (c1 and c2)

2/ an iSCSI SAN accessed by TWO Open-iSCSI initiators (t1 and t2) wich provide iSCSI-target (IET) to two GFS Cluster nodes. (with DLM) (c1 and c2) Each initiator porvides target to each cluster node. (t1 provides to c1, and t2 provides to c2)

t1 and t2 provide iSCSI target to their respective nodes.
t1 and t2 export scsi drives (/dev/sd*) not the logical volumes.
c1 and c2 are cluster members (not t1 and t2).

In the first case, a modification on the filesystem (creating a file, for example) by c1 is reflected on c2. In the second case, a filesystem modification by c1 (respectively c2) is not reflected on c2 (respectively c1).

Any idea ?

Thanks,

--
Jerome Castang
mail: jcastang adelpha-lan org


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