Hullo, I know this list has handle many issues of users not knowing how to setup multipathing, but I've read all of them and Christophe's wiki and I can't get my system to talk to my storage array. OS: RHEL 4.2, device-mapper-multipath-0.4.5-6.0.RHEL4 Configuration: I have a SunFire 4100 with one 2 port qla hba pci card dual connected to a single 16 port brocade silkworm which in turn in dual connected to a Sun StorEdge 3511. Interestingly, I get 4 /dev/sd[c-f] associated with the same LUN. I presume that each device can see the LUN through each of the 2 connections from the switch to the 3511. I know that mapper is working because there are 2 devices that the LVM creates, one for / and one for swap, but the LUNs don't show up. multipath -v2 does not give any output, but -v3 gives information on all 6 of the sd[a-f] devices. The only differences in the output of sd[c-f] are dev_t and h:b:t:l fields (see below). I've tried to add entries into the multipath.conf file, but nothing changes the output and I never get any more devices in /dev/mapper. What am I doing wrong? Thanks, Dan (I diffed the sections in the multipath -v3 output) < ===== path sdc ===== --- > ===== path sdf ===== 3c3 < dev_t = 8:32 --- > dev_t = 8:80 8c8 < h:b:t:l = 1:0:0:0 --- > h:b:t:l = 2:0:1:0 17,18c17 < path sdd not found in pathvec < --- > path sdg not found in pathvec -- dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
