Pradipmaya Maharana <pradipmaya@xxxxxxxxx> wrote: > The handler did register okay; I saw the following message in /var/log/messages. > > Oct 29 16:32:39 localhost kernel: device-mapper: multipath sample: > version 0.0.0 loaded. > I did just as you described and it worked for me. I will send you a patch version of the changes in my version dm-emc.c dm-sample.c off list. 1.) dmesg out ... [764248.618295] device-mapper: multipath sample: version 0.0.3 loaded ... [764743.244154] device-mapper: multipath sample: long trespass command will be send [764743.288411] device-mapper: multipath sample: honor reservation bit will not be set (default) [764743.344077] device-mapper: multipath sample: long trespass command will be send 2.) multipath -l ... mpath1 (35333333000001f40) dm-2 Linux,scsi_debug [size=8.0M][features=0][hwhandler=1 sample] \_ round-robin 0 [prio=0][active] \_ 3:0:0:0 sdb 8:16 [active][undef] 3.) /etc/multipath.conf /etc/multipath.conf ... device { vendor "Linux.*" product "scsi.*" hardware_handler "1 sample" } -andmike -- Michael Anderson andmike@xxxxxxxxxxxxxxxxxx -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel