Same `sd` devices for two `mpath` devices.
Issue
- Same
sddevices are seen for twompathdevices.
# /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
Environment
- Red Hat Enterprise Linux 6
- device-mapper-1.02.77-9.el6
- device-mapper-multipath-0.4.9-64.el6_4.2
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