[TEST RESULT stx:master (IPv4)]

1. No NTP is connected in controller-1

controller-1:~$ ntpq -np
     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
 192.168.204.2
                 .INIT.          16 u    -   64    0    0.000    0.000   0.000
 172.217.164.238
                 .INIT.          16 u    -   64    0    0.000    0.000   0.000
 74.6.143.26
                 .INIT.          16 u    -   64    0    0.000    0.000   0.000

[sysadmin@controller-0 ~(keystone_admin)]$ fm alarm-list
+----------+--------------------------------------------------------------------------------+--------------------------------------+----------+---------------------+
| Alarm ID | Reason Text                                                                    | Entity ID                            | Severity | Time Stamp          |
+----------+--------------------------------------------------------------------------------+--------------------------------------+----------+---------------------+
| 100.114  | NTP configuration does not contain any valid or reachable NTP servers.         | host=controller-1                    | major    | 2021-05-10T14:07:38 |
|          |                                                                                |                                      |          | .846405             |
|          |                                                                                |                                      |          |                     |
| 100.114  | NTP address 74.6.143.26 is not a valid or a reachable NTP server.              | host=controller-1=74.6.143.26        | minor    | 2021-05-10T14:07:38 |
|          |                                                                                |                                      |          | .676781             |
|          |                                                                                |                                      |          |                     |
| 100.114  | NTP address 172.217.164.238 is not a valid or a reachable NTP server.          | host=controller-1=172.217.164.238    | minor    | 2021-05-10T14:07:38 |
|          |                                                                                |                                      |          | .619920             |
==> One major alarm and two minor alarms are raised as expected.

2. Peer is selected but other servers are not reachable in controller-1

controller-1:~$ ntpq -np
     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
*192.168.204.2
                 209.115.181.102  3 u   27   64   76    0.185    3.546   3.505
 172.217.164.238
                 .INIT.          16 u    -   64    0    0.000    0.000   0.000
 74.6.143.26
                 .INIT.          16 u    -   64    0    0.000    0.000   0.000

[sysadmin@controller-0 ~(keystone_admin)]$ fm alarm-list
+----------+--------------------------------------------------------------------------------+--------------------------------------+----------+---------------------+
| Alarm ID | Reason Text                                                                    | Entity ID                            | Severity | Time Stamp          |
+----------+--------------------------------------------------------------------------------+--------------------------------------+----------+---------------------+
| 100.114  | NTP address 74.6.143.26 is not a valid or a reachable NTP server.              | host=controller-1=74.6.143.26        | minor    | 2021-05-10T14:07:38 |
|          |                                                                                |                                      |          | .676781             |
|          |                                                                                |                                      |          |                     |
| 100.114  | NTP address 172.217.164.238 is not a valid or a reachable NTP server.          | host=controller-1=172.217.164.238    | minor    | 2021-05-10T14:07:38 |
|          |                                                                                |                                      |          | .619920             |
==> No major alarm (previous major alarm is suppressed) and two minor alarms stay as expected.

3. swat, lock and shutdown controller-0 and wait until peer lose selected in controller-1

(swact and lock controller-0)

[sysadmin@controller-1 ~(keystone_admin)]$ system host-list
+----+--------------+-------------+----------------+-------------+--------------+
| id | hostname     | personality | administrative | operational | availability |
+----+--------------+-------------+----------------+-------------+--------------+
| 1  | controller-0 | controller  | locked         | disabled    | online       |
| 2  | controller-1 | controller  | unlocked       | enabled     | available    |
| 3  | compute-0    | worker      | unlocked       | enabled     | available    |
| 4  | compute-1    | worker      | unlocked       | enabled     | available    |
+----+--------------+-------------+----------------+-------------+--------------+
(shutdown controller-0 and wait until peer lose selected in controller-1)

[sysadmin@controller-1 ~(keystone_admin)]$ ntpq -np
     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
 192.168.204.2
                 209.115.181.110  3 u  554   64    0    0.015    5.311   0.583
 172.217.164.238
                 .INIT.          16 u    -  512    0    0.000    0.000   0.000
 74.6.143.26
                 .INIT.          16 u    -  512    0    0.000    0.000   0.000

[sysadmin@controller-1 ~(keystone_admin)]$ fm alarm-list | grep NTP
| 100.114  | NTP configuration does not contain any valid or reachable NTP servers. | host=controller-1                 | major | 2021-05-10T14:27:38 |
| 100.114  | NTP address 74.6.143.26 is not a valid or a reachable NTP server.      | host=controller-1=74.6.143.26     | minor | 2021-05-10T14:07:38 |
| 100.114  | NTP address 172.217.164.238 is not a valid or a reachable NTP server.  | host=controller-1=172.217.164.238 | minor | 2021-05-10T14:07:38 |
==> Major alarm is raised and two minor alarms stay as expected.