> yes : no table, no i/o > I've create with the dmsetup. this is what i've from the console. echo "0 262132604 multipath 2 round-robin 1 0 /dev/sdc round-robin 1 0 /dev/sdd round-robin 1 0 /dev/sde round-robin 1 0 /dev/sdf" | dmsetup create imapstor01 device-mapper ioctl cmd 9 failed: Invalid argument Command failed > > Here is an example of a multipath target : > > 0 27262976 multipath 2 round-robin 2 0 /dev/sda /dev/sdk round-robin 2 0 > > /dev/sdc /dev/sdm > > > good to see the tools work for you. > there, after execing "multipath", you should have a /udev/$wwid created. > you can format and play with that device node. errm... i guess you misunderstood the statement above. the statement Here is an example of a multipath target : 0 27262976 multipath 2 round-robin 2 0 /dev/sda /dev/sdk round-robin 2 0 /dev/sdc /dev/sdm was copied from the website. > It seems you already got what you want : just verify you have that /udev/$wwid node. i haven't see any wwid node in my udev. thanks for your reply. regards, hwahing