Same `sd` devices for two `mpath` devices.

Issue

• Same sd devices are seen for two mpath devices.

# /lib/udev/scsi_id --page=0x80 --whitelisted --device=/dev/mapper/mpathb
SIBM     2810XIV        780EACE2262
# /lib/udev/scsi_id --page=0x83 --whitelisted --device=/dev/mapper/mpathb
200173800eace2262
# /lib/udev/scsi_id --page=0x80 --whitelisted --device=/dev/mapper/mpathc
SIBM     2810XIV        780EACE2262
# /lib/udev/scsi_id --page=0x83 --whitelisted --device=/dev/mapper/mpathc
200173800eace2262

The scsi devices assigned to each mpath devices are the same:

# multipath -v2 -ll | grep mpathc -A 10
mpathc (200173800eace30f8) dm-197 IBM,2810XIV
size=48G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  |- 0:0:0:106 sdx   65:112   active ready running
  |- 0:0:1:106 sddh  70:240   active ready running
  |- 0:0:2:106 sdgg  131:192  active ready running
  |- 0:0:3:106 sdjq  65:320   active ready running
  |- 1:0:0:106 sdll  68:304   active ready running
  |- 1:0:1:106 sdnn  71:400   active ready running
  |- 1:0:2:106 sdrk  133:480  active ready running
  `- 1:0:3:106 sdtw  65:736   active ready running
# multipath -v2 -ll | grep mpathb -A 10
mpathb (200173800eace2262) dm-192 IBM,2810XIV
size=48G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  |- 0:0:0:106 sdx   65:112   active ready running
  |- 0:0:1:106 sddh  70:240   active ready running
  |- 0:0:2:106 sdgg  131:192  active ready running
  |- 0:0:3:106 sdjq  65:320   active ready running
  |- 1:0:0:106 sdll  68:304   active ready running
  |- 1:0:1:106 sdnn  71:400   active ready running
  |- 1:0:2:106 sdrk  133:480  active ready running
  `- 1:0:3:106 sdtw  65:736   active ready running