Lun number under /dev/disk/by-path on RHEL6 shows different from RHEL5

Solution In Progress - Updated -

Issue

  • RHEL5.5(lun 2207)
# ls -l /dev/disk/by-path/  | grep ip
lrwxrwxrwx 1 root root  9  Jan 22 14:44 ip-<ip address>:<port number>-iscsi-iqn.2000-05.com.<vendor name>:23120002ac000933-lun-2207 -> ../../sdd
lrwxrwxrwx 1 root root  9  Jan 22 14:44 ip-<ip address>:<port number>-iscsi-iqn.2000-05.com.<vendor name>:23110002ac000933-lun-2207 -> ../../sdc
lrwxrwxrwx 1 root root  9  Jan 22 14:44 ip-<ip address>:<port number>-iscsi-iqn.2000-05.com.<vendor name>:22120002ac000933-lun-2207 -> ../../sda
lrwxrwxrwx 1 root root  9  Jan 22 14:44 ip-<ip address>:<port number>-iscsi-iqn.2000-05.com.<vendor name>:22110002ac000933-lun-2207 -> ../../sdb
  • RHEL6.5(lun 2205)
# ls -l /dev/disk/by-path/ |grep ip
lrwxrwxrwx 1 root root  9 Jan 22 13:37 ip-<ip address>:<port number>-iscsi-iqn.2000-05.com.<vendor name>:23120002ac000933-lun-0x089d000000000000 -> ../../sde
lrwxrwxrwx 1 root root  9 Jan 22 13:37 ip-<ip address>:<port number>-iscsi-iqn.2000-05.com.<vendor name>:23110002ac000933-lun-0x089d000000000000 -> ../../sdd
lrwxrwxrwx 1 root root  9 Jan 22 13:37 ip-<ip address>:<port number>-iscsi-iqn.2000-05.com.<vendor name>:22120002ac000933-lun-0x089d000000000000 -> ../../sdb
lrwxrwxrwx 1 root root  9 Jan 22 13:37 ip-<ip address>:<port number>-iscsi-iqn.2000-05.com.<vendor name>:22110002ac000933-lun-0x089d000000000000 -> ../../sdc
  • The lun number displayed in hexadecimal on RHEL6.

Environment

Red Hat Enterprise Linux 6.5
Red Hat Enterprise Linux 5.5

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