Catch is as things are, with this volume it is a mpio attached device and due to volumes etc.. some see it as /dev/mapper/mpatha some as /dev/mapper/mpathc etc... What I also would prefer is it to match the common name (such as it is called in the SAN controller) such as "icp_intel_v90001_00"
Tried to follow instructions (ya.. odd I know
) https://access.redhat.com/solutions/2975361
Here is example:
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[root@icpmaster01 ~]# multipath -l
mpathc (3600507680c808191e0000000000000f6) dm-3 IBM ,2145
size=1.0T features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='service-time 0' prio=0 status=active
| `- 35:0:0:0 sde 8:64 active undef unknown
`-+- policy='service-time 0' prio=0 status=enabled
`- 36:0:0:0 sdf 8:80 active undef unknown
mpathb (36005076810810013d00000000000003a) dm-2 IBM ,2145
size=1.0T features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='service-time 0' prio=0 status=active
|- 33:0:0:0 sdc 8:32 active undef unknown
`- 34:0:0:0 sdd 8:48 active undef unknown
[root@icpmaster01 ~]#
[root@icpmaster01 ~]# cat /etc/udev/rules.d/20-names.rules
KERNEL=="sd*", SUBSYSTEM=="block", PROGRAM=="/lib/udev/scsi_id --whitelisted --replace-whitespace --device=%N", RESULT=="600507680C808191E0000000000000F6", SYMLINK+="icp_intel_v90001_00%n"
[root@icpmaster01 ~]#
[root@icpmaster01 ~]# udevadm test /block/sdc 2>&1 | grep icp_intel_v90001_00
[root@icpmaster01 ~]#
[root@icpmaster01 ~]# udevadm test /block/sdb
calling: test
version 219
This program is for debugging only, it does not run any program
specified by a RUN key. It may show incorrect results, because
some values may be different, or not available at a simulation run.
=== trie on-disk ===
tool version: 219
file size: 7916435 bytes
header size 80 bytes
strings 2033419 bytes
nodes 5882936 bytes
Load module index
Created link configuration context.
timestamp of '/etc/udev/rules.d' changed
Reading rules file: /usr/lib/udev/rules.d/01-md-raid-creating.rules
Reading rules file: /usr/lib/udev/rules.d/10-dm.rules
Reading rules file: /usr/lib/udev/rules.d/11-dm-lvm.rules
Reading rules file: /usr/lib/udev/rules.d/11-dm-mpath.rules
Reading rules file: /usr/lib/udev/rules.d/13-dm-disk.rules
Reading rules file: /etc/udev/rules.d/20-names.rules
Reading rules file: /usr/lib/udev/rules.d/39-usbmuxd.rules
Reading rules file: /usr/lib/udev/rules.d/40-libgphoto2.rules
IMPORT found builtin 'usb_id --export %%p', replacing /usr/lib/udev/rules.d/40-libgphoto2.rules:11
Reading rules file: /usr/lib/udev/rules.d/40-redhat.rules
Reading rules file: /usr/lib/udev/rules.d/40-usb_modeswitch.rules
Reading rules file: /usr/lib/udev/rules.d/42-usb-hid-pm.rules
Reading rules file: /usr/lib/udev/rules.d/50-rbd.rules
Reading rules file: /usr/lib/udev/rules.d/50-udev-default.rules
Reading rules file: /usr/lib/udev/rules.d/56-hpmud.rules
Reading rules file: /usr/lib/udev/rules.d/60-alias-kmsg.rules
Reading rules file: /usr/lib/udev/rules.d/60-cdrom_id.rules
Reading rules file: /usr/lib/udev/rules.d/60-drm.rules
Reading rules file: /usr/lib/udev/rules.d/60-evdev.rules
Reading rules file: /usr/lib/udev/rules.d/60-fprint-autosuspend.rules
Reading rules file: /usr/lib/udev/rules.d/60-keyboard.rules
Reading rules file: /usr/lib/udev/rules.d/60-net.rules
Reading rules file: /usr/lib/udev/rules.d/60-persistent-alsa.rules
Reading rules file: /usr/lib/udev/rules.d/60-persistent-input.rules
Reading rules file: /usr/lib/udev/rules.d/60-persistent-serial.rules
Reading rules file: /usr/lib/udev/rules.d/60-persistent-storage-tape.rules
Reading rules file: /usr/lib/udev/rules.d/60-persistent-storage.rules
Reading rules file: /usr/lib/udev/rules.d/60-persistent-v4l.rules
Reading rules file: /usr/lib/udev/rules.d/60-raw.rules
Reading rules file: /usr/lib/udev/rules.d/60-rdma-ndd.rules
Reading rules file: /usr/lib/udev/rules.d/60-srp_daemon.rules
Reading rules file: /usr/lib/udev/rules.d/61-accelerometer.rules
Reading rules file: /usr/lib/udev/rules.d/61-gnome-bluetooth-rfkill.rules
Reading rules file: /usr/lib/udev/rules.d/61-gnome-settings-daemon-rfkill.rules
Reading rules file: /usr/lib/udev/rules.d/62-multipath.rules
Reading rules file: /usr/lib/udev/rules.d/63-md-raid-arrays.rules
Reading rules file: /usr/lib/udev/rules.d/64-btrfs-dm.rules
Reading rules file: /usr/lib/udev/rules.d/64-btrfs.rules
Reading rules file: /usr/lib/udev/rules.d/65-libwacom.rules
Reading rules file: /usr/lib/udev/rules.d/65-md-incremental.rules
Reading rules file: /usr/lib/udev/rules.d/65-sane-backends.rules
Reading rules file: /usr/lib/udev/rules.d/69-cd-sensors.rules
Reading rules file: /usr/lib/udev/rules.d/69-dm-lvm-metad.rules
Reading rules file: /usr/lib/udev/rules.d/69-libmtp.rules
Reading rules file: /usr/lib/udev/rules.d/69-xorg-vmmouse.rules
Reading rules file: /usr/lib/udev/rules.d/70-hypervfcopy.rules
Reading rules file: /usr/lib/udev/rules.d/70-hypervkvp.rules
Reading rules file: /usr/lib/udev/rules.d/70-hypervvss.rules
Reading rules file: /usr/lib/udev/rules.d/70-mouse.rules
Reading rules file: /etc/udev/rules.d/70-persistent-ipoib.rules
Reading rules file: /usr/lib/udev/rules.d/70-power-switch.rules
Reading rules file: /usr/lib/udev/rules.d/70-printers.rules
Reading rules file: /usr/lib/udev/rules.d/70-spice-vdagentd.rules
Reading rules file: /usr/lib/udev/rules.d/70-touchpad-quirks.rules
Reading rules file: /usr/lib/udev/rules.d/70-touchpad.rules
Reading rules file: /usr/lib/udev/rules.d/70-uaccess.rules
Reading rules file: /usr/lib/udev/rules.d/70-wacom.rules
Reading rules file: /usr/lib/udev/rules.d/71-biosdevname.rules
Reading rules file: /usr/lib/udev/rules.d/71-seat.rules
Reading rules file: /usr/lib/udev/rules.d/73-idrac.rules
Reading rules file: /usr/lib/udev/rules.d/73-seat-late.rules
Reading rules file: /usr/lib/udev/rules.d/75-net-description.rules
Reading rules file: /usr/lib/udev/rules.d/75-probe_mtd.rules
Reading rules file: /usr/lib/udev/rules.d/75-rdma-description.rules
Reading rules file: /usr/lib/udev/rules.d/75-tty-description.rules
Reading rules file: /usr/lib/udev/rules.d/76-phys-port-name.rules
Reading rules file: /usr/lib/udev/rules.d/77-mm-cinterion-port-types.rules
Reading rules file: /usr/lib/udev/rules.d/77-mm-dell-port-types.rules
Reading rules file: /usr/lib/udev/rules.d/77-mm-ericsson-mbm.rules
Reading rules file: /usr/lib/udev/rules.d/77-mm-haier-port-types.rules
Reading rules file: /usr/lib/udev/rules.d/77-mm-huawei-net-port-types.rules
Reading rules file: /usr/lib/udev/rules.d/77-mm-longcheer-port-types.rules
Reading rules file: /usr/lib/udev/rules.d/77-mm-mtk-port-types.rules
Reading rules file: /usr/lib/udev/rules.d/77-mm-nokia-port-types.rules
Reading rules file: /usr/lib/udev/rules.d/77-mm-pcmcia-device-blacklist.rules
Reading rules file: /usr/lib/udev/rules.d/77-mm-simtech-port-types.rules
Reading rules file: /usr/lib/udev/rules.d/77-mm-telit-port-types.rules
Reading rules file: /usr/lib/udev/rules.d/77-mm-usb-device-blacklist.rules
Reading rules file: /usr/lib/udev/rules.d/77-mm-usb-serial-adapters-greylist.rules
Reading rules file: /usr/lib/udev/rules.d/77-mm-x22x-port-types.rules
Reading rules file: /usr/lib/udev/rules.d/77-mm-zte-port-types.rules
Reading rules file: /usr/lib/udev/rules.d/78-sound-card.rules
Reading rules file: /usr/lib/udev/rules.d/80-drivers.rules
Reading rules file: /usr/lib/udev/rules.d/80-kvm.rules
Reading rules file: /usr/lib/udev/rules.d/80-libinput-device-groups.rules
Reading rules file: /usr/lib/udev/rules.d/80-mm-candidate.rules
Reading rules file: /usr/lib/udev/rules.d/80-net-name-slot.rules
Reading rules file: /usr/lib/udev/rules.d/80-net-setup-link.rules
Reading rules file: /usr/lib/udev/rules.d/80-udisks2.rules
Reading rules file: /usr/lib/udev/rules.d/81-kvm-rhel.rules
Reading rules file: /usr/lib/udev/rules.d/84-nm-drivers.rules
Reading rules file: /usr/lib/udev/rules.d/85-nm-unmanaged.rules
Reading rules file: /usr/lib/udev/rules.d/85-regulatory.rules
Reading rules file: /usr/lib/udev/rules.d/90-alsa-restore.rules
Reading rules file: /usr/lib/udev/rules.d/90-alsa-tools-firmware.rules
Reading rules file: /etc/udev/rules.d/90-eno-fix.rules
Reading rules file: /usr/lib/udev/rules.d/90-iprutils.rules
Reading rules file: /usr/lib/udev/rules.d/90-iwpmd.rules
Reading rules file: /usr/lib/udev/rules.d/90-libinput-model-quirks.rules
Reading rules file: /usr/lib/udev/rules.d/90-pulseaudio.rules
Reading rules file: /usr/lib/udev/rules.d/90-rdma-hw-modules.rules
Reading rules file: /usr/lib/udev/rules.d/90-rdma-ulp-modules.rules
Reading rules file: /usr/lib/udev/rules.d/90-rdma-umad.rules
Reading rules file: /usr/lib/udev/rules.d/90-vconsole.rules
Reading rules file: /usr/lib/udev/rules.d/91-drm-modeset.rules
Reading rules file: /usr/lib/udev/rules.d/95-cd-devices.rules
Reading rules file: /usr/lib/udev/rules.d/95-dm-notify.rules
Reading rules file: /usr/lib/udev/rules.d/95-udev-late.rules
Reading rules file: /usr/lib/udev/rules.d/95-upower-csr.rules
Reading rules file: /usr/lib/udev/rules.d/95-upower-hid.rules
Reading rules file: /usr/lib/udev/rules.d/95-upower-wup.rules
Reading rules file: /usr/lib/udev/rules.d/98-kexec.rules
Reading rules file: /usr/lib/udev/rules.d/98-rdma.rules
Reading rules file: /usr/lib/udev/rules.d/99-qemu-guest-agent.rules
Reading rules file: /usr/lib/udev/rules.d/99-systemd.rules
Reading rules file: /usr/lib/udev/rules.d/99-vmware-scsi-udev.rules
rules contain 393216 bytes tokens (32768 * 12 bytes), 39808 bytes strings
45493 strings (368593 bytes), 41607 de-duplicated (332672 bytes), 3887 trie nodes used
PROGRAM '/lib/udev/scsi_id --whitelisted --replace-whitespace --device=/dev/sdb' /etc/udev/rules.d/20-names.rules:1
starting '/lib/udev/scsi_id --whitelisted --replace-whitespace --device=/dev/sdb'
'/lib/udev/scsi_id --whitelisted --replace-whitespace --device=/dev/sdb' [25064] exit with return code 1
GROUP 6 /usr/lib/udev/rules.d/50-udev-default.rules:52
IMPORT builtin 'usb_id' /usr/lib/udev/rules.d/56-hpmud.rules:10
unable to access usb_interface device of '/sys/devices/pci0000:00/0000:00:15.0/0000:03:00.0/host0/target0:0:1/0:0:1:0/block/sdb'
IMPORT builtin 'usb_id' returned non-zero
IMPORT 'scsi_id --export --whitelisted -d /dev/sdb' /usr/lib/udev/rules.d/60-persistent-storage.rules:51
starting 'scsi_id --export --whitelisted -d /dev/sdb'
'scsi_id --export --whitelisted -d /dev/sdb'(out) 'ID_SCSI=1'
'scsi_id --export --whitelisted -d /dev/sdb'(out) 'ID_VENDOR=VMware'
'scsi_id --export --whitelisted -d /dev/sdb'(out) 'ID_VENDOR_ENC=VMware\x20\x20'
'scsi_id --export --whitelisted -d /dev/sdb'(out) 'ID_MODEL=Virtual_disk'
'scsi_id --export --whitelisted -d /dev/sdb'(out) 'ID_MODEL_ENC=Virtual\x20disk\x20\x20\x20\x20'
'scsi_id --export --whitelisted -d /dev/sdb'(out) 'ID_REVISION=2.0'
'scsi_id --export --whitelisted -d /dev/sdb'(out) 'ID_TYPE=disk'
'scsi_id --export --whitelisted -d /dev/sdb' [25065] exit with return code 0
IMPORT builtin 'path_id' /usr/lib/udev/rules.d/60-persistent-storage.rules:66
LINK 'disk/by-path/pci-0000:03:00.0-scsi-0:0:1:0' /usr/lib/udev/rules.d/60-persistent-storage.rules:67
IMPORT builtin 'blkid' /usr/lib/udev/rules.d/60-persistent-storage.rules:87
probe /dev/sdb raid offset=0
LINK 'disk/by-uuid/125129f9-2f40-4be7-9fb9-9c92766aa22c' /usr/lib/udev/rules.d/60-persistent-storage.rules:93
LINK 'disk/by-label/opt' /usr/lib/udev/rules.d/60-persistent-storage.rules:94
PROGRAM '/sbin/multipath -c /dev/sdb' /usr/lib/udev/rules.d/62-multipath.rules:21
starting '/sbin/multipath -c /dev/sdb'
'/sbin/multipath -c /dev/sdb' [25066] exit with return code 1
no db file to read /run/udev/data/+scsi:0:0:1:0: No such file or directory
RUN '/bin/sh -c 'echo 180 >/sys$DEVPATH/device/timeout'' /usr/lib/udev/rules.d/99-vmware-scsi-udev.rules:1
handling device node '/dev/sdb', devnum=b8:16, mode=0660, uid=0, gid=6
preserve permissions /dev/sdb, 060660, uid=0, gid=6
preserve already existing symlink '/dev/block/8:16' to '../sdb'
found 'b8:16' claiming '/run/udev/links/\x2fdisk\x2fby-label\x2fopt'
creating link '/dev/disk/by-label/opt' to '/dev/sdb'
preserve already existing symlink '/dev/disk/by-label/opt' to '../../sdb'
found 'b8:16' claiming '/run/udev/links/\x2fdisk\x2fby-path\x2fpci-0000:03:00.0-scsi-0:0:1:0'
creating link '/dev/disk/by-path/pci-0000:03:00.0-scsi-0:0:1:0' to '/dev/sdb'
preserve already existing symlink '/dev/disk/by-path/pci-0000:03:00.0-scsi-0:0:1:0' to '../../sdb'
found 'b8:16' claiming '/run/udev/links/\x2fdisk\x2fby-uuid\x2f125129f9-2f40-4be7-9fb9-9c92766aa22c'
creating link '/dev/disk/by-uuid/125129f9-2f40-4be7-9fb9-9c92766aa22c' to '/dev/sdb'
preserve already existing symlink '/dev/disk/by-uuid/125129f9-2f40-4be7-9fb9-9c92766aa22c' to '../../sdb'
created db file '/run/udev/data/b8:16' for '/devices/pci0000:00/0000:00:15.0/0000:03:00.0/host0/target0:0:1/0:0:1:0/block/sdb'
.ID_FS_TYPE_NEW=xfs
ACTION=add
DEVLINKS=/dev/disk/by-label/opt /dev/disk/by-path/pci-0000:03:00.0-scsi-0:0:1:0 /dev/disk/by-uuid/125129f9-2f40-4be7-9fb9-9c92766aa22c
DEVNAME=/dev/sdb
DEVPATH=/devices/pci0000:00/0000:00:15.0/0000:03:00.0/host0/target0:0:1/0:0:1:0/block/sdb
DEVTYPE=disk
DM_MULTIPATH_TIMESTAMP=1541452704
ID_BUS=scsi
ID_FS_LABEL=opt
ID_FS_LABEL_ENC=opt
ID_FS_TYPE=xfs
ID_FS_USAGE=filesystem
ID_FS_UUID=125129f9-2f40-4be7-9fb9-9c92766aa22c
ID_FS_UUID_ENC=125129f9-2f40-4be7-9fb9-9c92766aa22c
ID_MODEL=Virtual_disk
ID_MODEL_ENC=Virtual\x20disk\x20\x20\x20\x20
ID_PATH=pci-0000:03:00.0-scsi-0:0:1:0
ID_PATH_TAG=pci-0000_03_00_0-scsi-0_0_1_0
ID_REVISION=2.0
ID_SCSI=1
ID_TYPE=disk
ID_VENDOR=VMware
ID_VENDOR_ENC=VMware\x20\x20
MAJOR=8
MINOR=16
MPATH_SBIN_PATH=/sbin
SUBSYSTEM=block
TAGS=:systemd:
USEC_INITIALIZED=26876
run: '/bin/sh -c 'echo 180 >/sys$DEVPATH/device/timeout''
Unload module index
Unloaded link configuration context.
[root@icpmaster01 ~]#
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Just not seeing how to get this common name udev concept to work.