LUN ID is set to 0 for all the lefthand (VSA) volumes attached to an instance.

[Sumit Girish Shatwara]

STEPS TO REPRODUCE:
A. Create 3 lefthand volumes and create one instance.
B. Attach all the volumes to above created instance.

OBSERVED RESULT:
LUN ID is set to lun-0, lun-0, lun-0 for all the volumes respectively in the below command.

stack@cld4b11:~/devstack$ ls -lrt /dev/disk/by-path/
total 0
lrwxrwxrwx 1 root root 9 Aug 31 23:29 ip-10.50.3.50:3260-iscsi-iqn.2003-10.com.lefthandnetworks:vsa-12-5-mgmt1-vip:73222:volume-9b1dae00-78ad-443c-aa37-9a4c20493851-lun-0 -> ../../sdb
lrwxrwxrwx 1 root root 9 Aug 31 23:36 ip-10.50.3.50:3260-iscsi-iqn.2003-10.com.lefthandnetworks:vsa-12-5-mgmt1-vip:73243:volume-408ebc12-4ab9-4e79-9fa4-6036221fda56-lun-0 -> ../../sdc
lrwxrwxrwx 1 root root 9 Aug 31 23:37 ip-10.50.3.50:3260-iscsi-iqn.2003-10.com.lefthandnetworks:vsa-12-5-mgmt1-vip:73245:volume-ff9c029f-d83f-41af-b9bd-b21f42c44dbe-lun-0 -> ../../sdd

EXPECTED RESULT:
LUN ID must be set to lun-0, lun-1, lun-2 for all the volumes respectively in the below command.

stack@cld4b11:~/devstack$ ls -lrt /dev/disk/by-path/
total 0
lrwxrwxrwx 1 root root 9 Aug 31 23:29 ip-10.50.3.50:3260-iscsi-iqn.2003-10.com.lefthandnetworks:vsa-12-5-mgmt1-vip:73222:volume-9b1dae00-78ad-443c-aa37-9a4c20493851-lun-0 -> ../../sdb
lrwxrwxrwx 1 root root 9 Aug 31 23:36 ip-10.50.3.50:3260-iscsi-iqn.2003-10.com.lefthandnetworks:vsa-12-5-mgmt1-vip:73243:volume-408ebc12-4ab9-4e79-9fa4-6036221fda56-lun-1 -> ../../sdc
lrwxrwxrwx 1 root root 9 Aug 31 23:37 ip-10.50.3.50:3260-iscsi-iqn.2003-10.com.lefthandnetworks:vsa-12-5-mgmt1-vip:73245:volume-ff9c029f-d83f-41af-b9bd-b21f42c44dbe-lun-2 -> ../../sdd

Note: Observed the above issue on Devstack/Mitaka release.

[Sean McGinnis (sean-mcginnis)]

As far as I know, this is expected and normal behavior. Temporarily assigning to Walt to confirm.

[Walt Boring (walter-boring)]

This is completely normal and expected behavior. If you notice the IQN's change for every volume on the LeftHand. This is not a bug.