The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.

1.2.2.3 Persistent Device Naming

udev maintains persistent device names for devices such as /dev/sdb by creating symbolic links such as /dev/disk/by-path/pci-0000:00:0d.0-scsi-1:0:0:0 and /dev/disk/by-uuid/e8d40553-43f2-4ae6-8e4b-38e04e7ee41c. The kernel message log now records each udev persistent device name mapping in the following format:

udev-alias: device_name (udev_persistent_name1 udev_persistent_name2 ... )

You can use a log analyzer to examine these messages, which are also saved in /var/log/messages.