On Nov 15, 2007 1:16 PM, Mike Anderson <andmike@xxxxxxxxxxxxxxxxxx> wrote: > > > >> I can use 'mknod sdc b 8 32' to generate a new /dev/sdc, which I can > > >> fdisk and the data looks good, but once I reboot the /dev/sdc device > > >> is once again removed (or not re-created, whichever the case may be). > > I would agree that we should look to see what udev is doing when it > receives the events. > > Since I believe this is failing on a RHEL4 sytem we cannot use > udevmonitor. If you unload the iSCSI module, edit /etc/udev/udev.conf to > set udev_log="yes", and then load the module again you should get some info > in /var/log/message on what udev is doing. > Hey Mike, Here's the guts of what happened... # cat /var/log/messages | grep udev Nov 13 15:39:01 ems1 udevsend[1185]: starting udevd daemon Nov 13 15:39:02 ems1 start_udev: Starting udev: succeeded Nov 13 15:39:06 ems1 udevsend[1691]: starting udevd daemon Nov 15 20:13:58 ems1 udev[30499]: creating device node '/dev/iscsictl' Nov 15 20:13:58 ems1 udev[30509]: creating device node '/dev/iscsictl' Nov 15 20:14:03 ems1 udev[30551]: configured rule in '/etc/udev/rules.d/20-local.rules' at line 2 applied, 'sdc' is ignored Nov 15 20:14:03 ems1 udev[30552]: configured rule in '/etc/udev/rules.d/51-by-id.rules' at line 4 applied, added symlink 'disk/by-id/scsi-%c-part%n' Nov 15 20:14:03 ems1 udev[30552]: creating device node '/dev/sdc1' # cat /etc/udev/rules.d/20-local.rules BUS="scsi", SYSFS{vendor}="EQLOGIC", SYSFS{model}="100E-00", PROGRAM="/sbin/scsi_id -g -u -s /block/%k", RESULT="30690a018f015191a6472441d1500f057", NAME="" Maybe I shot myself in the foot. While I don't necessarily recall very putting that entry in there, I'm not going to exclude myself as the cause of the problem (seeing how many steps I jumped through when playing with all of this HBA, NIC and MPIO stuff). Should I comment out that line, reboot (or restart iscsi) and see what happens? Thanks! Scott -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel