This might also be useful: # /sbin/multipathd -d -s -v 3 --------start up-------- read /etc/multipath.conf loading /lib64/multipath/libchecktur.so checker loading /lib64/multipath/libprioconst.so prioritizer foreign library "nvme" loaded successfully set open fds limit to 1048576/1048576 path checkers start up uxsock: startup listener No configuration dir '/etc/multipath/conf.d' sdb: udev property DEVLINKS whitelisted sdb: mask = 0x1f sdb: dev_t = 8:16 sdb: size = 65536 sdb: vendor = LIO-ORG sdb: product = IBLOCK sdb: rev = 4.0 sdb: h:b:t:l = 1:0:0:0 sdb: tgt_node_name = sdb: path state = running sdb: 1024 cyl, 2 heads, 32 sectors/track, start at 0 sdb: serial = 72616d6469736b31000000000 sdb: get_state sdb: detect_checker = yes (setting: multipath internal) failed to issue vpd inquiry for pgc9 sdb: path_checker = tur (setting: storage device autodetected) sdb: checker timeout = 30 s (setting: kernel sysfs) sdb: tur state = up sdb: uid_attribute = ID_SERIAL (setting: multipath internal) sdb: uid = 3600140572616d6469736b31000000000 (udev) sdb: detect_prio = yes (setting: multipath internal) failed to issue vpd inquiry for pgc9 loading /lib64/multipath/libpriosysfs.so prioritizer sdb: prio = sysfs (setting: storage device autodetected) sdb: prio args = "" (setting: storage device autodetected) sdb: sysfs prio = 50 sdd: udev property DEVLINKS whitelisted sdd: mask = 0x1f sdd: dev_t = 8:48 sdd: size = 65536 sdd: vendor = LIO-ORG sdd: product = IBLOCK sdd: rev = 4.0 sdd: h:b:t:l = 1:0:0:1 sdd: tgt_node_name = sdd: path state = running sdd: 1024 cyl, 2 heads, 32 sectors/track, start at 0 sdd: serial = 72616d6469736b32000000000 sdd: get_state sdd: detect_checker = yes (setting: multipath internal) failed to issue vpd inquiry for pgc9 sdd: path_checker = tur (setting: storage device autodetected) sdd: checker timeout = 30 s (setting: kernel sysfs) sdd: tur state = up sdd: uid_attribute = ID_SERIAL (setting: multipath internal) sdd: uid = 3600140572616d6469736b32000000000 (udev) sdd: detect_prio = yes (setting: multipath internal) failed to issue vpd inquiry for pgc9 sdd: prio = sysfs (setting: storage device autodetected) sdd: prio args = "" (setting: storage device autodetected) sdd: sysfs prio = 50 sdc: udev property DEVLINKS whitelisted sdc: mask = 0x1f sdc: dev_t = 8:32 sdc: size = 65536 sdc: vendor = LIO-ORG sdc: product = IBLOCK sdc: rev = 4.0 sdc: h:b:t:l = 1:0:0:2 sdc: tgt_node_name = sdc: path state = running sdc: 1024 cyl, 2 heads, 32 sectors/track, start at 0 sdc: serial = 7363736964626700000000000 sdc: get_state sdc: detect_checker = yes (setting: multipath internal) failed to issue vpd inquiry for pgc9 sdc: path_checker = tur (setting: storage device autodetected) sdc: checker timeout = 30 s (setting: kernel sysfs) sdc: tur state = up sdc: uid_attribute = ID_SERIAL (setting: multipath internal) sdc: uid = 360014057363736964626700000000000 (udev) sdc: detect_prio = yes (setting: multipath internal) failed to issue vpd inquiry for pgc9 sdc: prio = sysfs (setting: storage device autodetected) sdc: prio args = "" (setting: storage device autodetected) sdc: sysfs prio = 50 nvme0n1: udev property DEVLINKS whitelisted nvme0n1: device node name whitelisted nvme0n1: mask = 0x1f nvme0n1: dev_t = 259:0 nvme0n1: size = 16777216 nvme0n1: vendor = NVME nvme0n1: product = QEMU NVMe Ctrl nvme0n1: serial = 1337 nvme0n1: rev = 1.0 nvme0n1: path state = live nvme0n1: 8192 cyl, 64 heads, 32 sectors/track, start at 0 nvme0n1: get_state nvme0n1: detect_checker = yes (setting: multipath internal) nvme0n1: path_checker = none (setting: storage device configuration) nvme0n1: checker timeout = 30 s (setting: multipath internal) nvme0n1: none state = up nvme0n1: uid_attribute = ID_WWN (setting: storage device configuration) nvme0n1: uid = nvme.8086-31333337-51454d55204e564d65204374726c-00000001 (udev) nvme0n1: detect_prio = yes (setting: multipath internal) nvme0n1: prio = const (setting: multipath internal) nvme0n1: prio args = "" (setting: multipath internal) nvme0n1: const prio = 1 vda: udev property DEVLINKS whitelisted vda: device node name blacklisted vdb: udev property DEVLINKS whitelisted vdb: device node name blacklisted vdc: udev property DEVLINKS whitelisted vdc: device node name blacklisted vdd: udev property DEVLINKS whitelisted vdd: device node name blacklisted sda: udev property DEVLINKS whitelisted sda: mask = 0x1f sda: dev_t = 8:0 sda: size = 65536 sda: vendor = Linux sda: product = scsi_debug sda: rev = 0188 sda: h:b:t:l = 0:0:0:0 sda: tgt_node_name = sda: path state = running sda: 1024 cyl, 2 heads, 32 sectors/track, start at 0 sda: serial = 2000 sda: get_state sda: detect_checker = yes (setting: multipath internal) failed to issue vpd inquiry for pgc9 sda: path_checker = tur (setting: multipath internal) sda: checker timeout = 30 s (setting: kernel sysfs) sda: tur state = up sda: uid_attribute = ID_SERIAL (setting: multipath internal) sda: uid = 333333330000007d0 (udev) sda: detect_prio = yes (setting: multipath internal) sda: prio = const (setting: multipath internal) sda: prio args = "" (setting: multipath internal) sda: const prio = 1 ram0: udev property DEVNAME whitelisted ram0: device node name blacklisted ram1: udev property DEVNAME whitelisted ram1: device node name blacklisted ram2: udev property DEVNAME whitelisted ram2: device node name blacklisted sdb: udev property DEVLINKS whitelisted sdd: udev property DEVLINKS whitelisted sdc: udev property DEVLINKS whitelisted nvme0n1: udev property DEVLINKS whitelisted sda: udev property DEVLINKS whitelisted sda: (Linux:scsi_debug) vendor/product blacklisted tur checker refcount 4 const prioritizer refcount 2 libdevmapper version 1.02.146 (2017-12-18) DM multipath kernel driver v1.13.0 sdb: udev property DEVLINKS whitelisted wwid 3600140572616d6469736b31000000000 not in wwids file, skipping sdb sdb: orphan path, only one path sysfs prioritizer refcount 3 tur checker refcount 3 sdd: udev property DEVLINKS whitelisted wwid 3600140572616d6469736b32000000000 not in wwids file, skipping sdd sdd: orphan path, only one path sysfs prioritizer refcount 2 tur checker refcount 2 sdc: udev property DEVLINKS whitelisted wwid 360014057363736964626700000000000 not in wwids file, skipping sdc sdc: orphan path, only one path sysfs prioritizer refcount 1 tur checker refcount 1 nvme0n1: udev property DEVLINKS whitelisted wwid nvme.8086-31333337-51454d55204e564d65204374726c-00000001 not in wwids file, skipping nvme0n1 nvme0n1: orphan path, only one path const prioritizer refcount 1 none checker refcount 1 exit (signal) ^CReleasing uevent_monitor() resources Releasing uevent_listen() resources unloading none checker unloading tur checker unloading sysfs prioritizer unloading const prioritizer unlink pidfile --------shut down-------
