Multipath devices are disappearing after configuring the udev rule.

Solution Verified - Updated -

Issue

  • Multipath aliases were working fine. After creating an udev rule with parameters owner/group/mode and NAME multipath device would not be found after reboot.

    • Multipath alias was configured as 
    multipath {
                wwid 350002ac004113ab6
                alias mydevice
    • Udev rule was as follows
    KERNEL=="sd*", SUBSYSTEM=="block", OWNER="oracle", GROUP="dba", MODE="0660", ACTION=="add|change", BUS=="scsi", PROGRAM=="/sbin/scsi_id --whitelisted --device=/dev/$name", RESULT=="350002ac004033ab6", NAME="oradevice"

Environment

  • Red Hat Enterprise Linux 6
  • DM-Multipath
  • Udev

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