Hi I would like to boot RHEL5 from SAN. If I install with the "mpath" parameter I can see the mapper/mpath0 device and the installation completes without any errors. It boots from SAN and everything looks ok (well, lets say its working). If i add this lines to /etc/lvm/lvm.conf types = [ "device-mapper", 1] "filter = [ "a/dev/mpath/.*/", "r/.*/" ]" and remove the blacklist lines from /etc/multipath.conf as described in the "Native Multipath Failover Based on DM-MPIO for v2.6.x Linux Kernel and EMC(R) Storage Arrays" manual the pvscan command returns with " No matching physical volumes found". Why? If I remove the filter line from lvm.conf the pvscan & pvdisplay command returns: (...) PV Name /dev/mapper/mpath0p2 (...) Why is it using mpath0p2 and not mpath0? /dev/mapper/mpath0 does exist and points to the right disks, because "multipath -ll" gives me something like that: mpath0 () dm-0 EMC,SYMMETRIX [size=17G][features=0][hwhandler=0] \_ round-robin 0 [prio=9][active] \_ 2:0:0:67 sda 8:0 [active][ready] \_ 2:0:0:33795 sdc 8:32 [active][ready] \_ 2:0:0:33811 sdd 8:48 [active][ready] \_ 2:0:0:37891 sde 8:64 [active][ready] \_ 2:0:0:37907 sdf 8:80 [active][ready] \_ 2:0:0:41987 sdg 8:96 [active][ready] \_ 2:0:0:42003 sdh 8:112 [active][ready] \_ 2:0:0:46083 sdi 8:128 [active][ready] \_ 2:0:0:46099 sdj 8:144 [active][ready] Any help would be most welcome! cheers Urs -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
