> At this moment I have to go with EMC PowerPath. But ofcourse after > few days , I have to test the multipath. > > Storage attahed 9 paths means I wanted to say altgether 18 paths > of each luns. The same box with same storage was attached > previously with 32 but RHEL4. and i was getting 2 paths of each > lun. But when the same luns are attached to rhel5.2 - 64 bit i > am seeing the same lun now have 18 paths. > > Here is the powermt display. > > [r...@server]# powermt display dev=all|more > Pseudo name=emcpowerb > Symmetrix ID=000187751529 > Logical device ID=09CC > state=alive; policy=SymmOpt; priority=0; queued-IOs=0 > ==============================================================================
> ---------------- Host --------------- - Stor - -- I/O Path - --Stats --- > ### HW Path I/O Paths Interf. Mode State Q-IOs Errors > ============================================================================== > 0 qla2xxx sdaa FA 7bA active alive 0 0 > 0 qla2xxx sdad FA 7bA active alive 0 0 > 1 qla2xxx sdai FA 10bA active alive 0 0 > 1 qla2xxx sdal FA 10bA active alive 0 0 > 0 qla2xxx sdaq FA 7bA active alive 0 0 > 0 qla2xxx sdat FA 7bA active alive 0 0 > 1 qla2xxx sday FA 10bA active alive 0 0 > 0 qla2xxx sdb FA 7bA active alive 0 0 > 1 qla2xxx sdbb FA 10bA active alive 0 0 > 0 qla2xxx sdbg FA 7bA active alive 0 0 > 0 qla2xxx sdbj FA 7bA active alive 0 0 > 1 qla2xxx sdbo FA 10bA active alive 0 0 > 1 qla2xxx sdbr FA 10bA active alive 0 0 > 1 qla2xxx sdf FA 10bA active alive 0 0 > 0 qla2xxx sdk FA 7bA active alive 0 0 > 0 qla2xxx sdn FA 7bA active alive 0 0 > 1 qla2xxx sds FA 10bA active alive 0 0 > 1 qla2xxx sdv FA 10bA active alive 0 0 > Thanks again I'm still at a bit of a loss as to how you could be at the number 18. I just played with a basic diagram for a few and get numbers usually in multiples of 4. (18 is possible with failures, which I don't see here, but then that could technically mean something isn't configured right). But what you are trying to say is that previously you only had 2 paths for each lun? That does raise an interesting concern. Can you describe your fibre network from san to server please? -greg _______________________________________________ rhelv5-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/rhelv5-list
