Configure NTP Servers and Services Using the CLIΒΆ

You can use the CLI to add or update a list of NTP servers and services.

NTP Servers

You can specify up to three NTP servers using the CLI or the Horizon Web interface. For more information, see Configure NTP Servers and Services Using Horizon.

To view the existing NTP server configuration, use the following command.

~(keystone_admin)$ system ntp-show
+--------------+----------------------------------------------+
| Property     | Value                                        |
+--------------+----------------------------------------------+
| uuid         | c65d5dcd-de6c-4ff9-89a1-c385dd4c7310         |
| ntpservers   | 0.pool.ntp.org,1.pool.ntp.org,3.pool.ntp.org |
| isystem_uuid | a16d7b07-1d42-41cf-b001-04bc25216a2b         |
| created_at   | 2019-12-07T18:31:14.242942+00:00             |
| updated_at   | 2019-12-07T18:42:09.244572+00:00             |
+--------------+----------------------------------------------+

Note

When you change the NTP system configuration you must lock/unlock all hosts. This process requires a swact on the controllers. During a host swact the system may raise NTP alarms.

To change the NTP server IP addresses, use the following command syntax. The ntpservers option takes a comma-delimited list of NTP server names.

~(keystone_admin)$ system ntp-modify \
ntpservers=<server_1[,server_2][,server_3]>

For example:

~(keystone_admin)$ system ntp-modify ntpservers=0.pool.ntp.org,1.pool.ntp.org,3.pool.ntp.org

NTP Service

Clock synchronization, synchronizes time across multiple systems in a network. The default value for clock_synchronization is ntp.

Note

NTP and PTP is configured per host. Lock/unlock the host when updating clock_synchronization for the host.

Use the following command to change the clock synchronization on the host:

~(keystone_admin)$ system host-update controller-0 clock_synchronization=ntp
+-----------------------+--------------------------------------------+
| Property              | Value                                      |
+-----------------------+--------------------------------------------+
| action                | none                                       |
| administrative        | unlocked                                   |
| availability          | available                                  |
| bm_ip                 | None                                       |
| bm_type               | None                                       |
| bm_username           | None                                       |
| boot_device           | /dev/disk/by-path/pci-0000:00:1f.2-ata-1.0 |
| capabilities          | {u'stor_function': u'monitor'}             |
| clock_synchronization | ntp                                        |
| config_applied        | 16dfa935-e21e-4737-90f4-1afa83a3091b       |
| config_status         | None                                       |
| config_target         | 16dfa935-e21e-4737-90f4-1afa83a3091b       |
| console               | ttyS0,115200n8                             |
| created_at            | 2020-02-27T15:00:07.108865+00:00           |
| hostname              | controller-0                               |
| id                    | 1                                          |
| install_output        | text                                       |
| install_state         | None                                       |
| install_state_info    | None                                       |
| inv_state             | inventoried                                |
| invprovision          | provisioned                                |
| location              | {}                                         |
| mgmt_ip               | 192.168.204.3                              |
| mgmt_mac              | 00:00:00:00:00:00                          |
| operational           | enabled                                    |
| personality           | controller                                 |
| reserved              | False                                      |
| rootfs_device         | /dev/disk/by-path/pci-0000:00:1f.2-ata-1.0 |
| serialid              | None                                       |
| software_load         | 20.06                                      |
| subfunction_avail     | available                                  |
| subfunction_oper      | enabled                                    |
| subfunctions          | controller,worker                          |
| task                  |                                            |
| tboot                 | false                                      |
| ttys_dcd              | None                                       |
| updated_at            | 2020-02-28T17:21:42.374847+00:00           |
| uptime                | 7403                                       |
| uuid                  | cc870915-b8dd-4989-914c-7095eabe36e8       |
| vim_progress_status   | services-enabled                           |
+-----------------------+--------------------------------------------+

To view the NTP service configuration, use the following command:

~(keystone_admin)$ system host-show controller-0
+-----------------------+------------------------------------------------+
| Property              | Value                                          |
+-----------------------+------------------------------------------------+
| action                | none                                           |
| administrative        | unlocked                                       |
| availability          | available                                      |
| bm_ip                 | None                                           |
| bm_type               | None                                           |
| bm_username           | None                                           |
| boot_device           | /dev/disk/by-path/pci-0000:04:00.0-sas         |
|                       |-0x5001e6754aa38000-lun-0                       |
| capabilities          | {u'stor_function': u'monitor', u'Personality': |
|                       | u'Controller-Active'}                          |
| clock_synchronization | ntp                                            |
| config_applied        | 590f29ad-19e2-43ee-855e-f765814e3ecd           |
| config_status         | Config out-of-date                             |
| config_target         | cd18ec25-c030-4b0c-862b-c39726275743           |
| console               | ttyS0,115200n8                                 |
| created_at            | 2020-02-27T18:32:58.752361+00:00               |
| hostname              | controller-0                                   |
| id                    | 1                                              |
| install_output        | text                                           |
| install_state         | None                                           |
| install_state_info    | None                                           |
| inv_state             | inventoried                                    |
| invprovision          | provisioned                                    |
| location              | {}                                             |
| mgmt_ip               | 192.168.204.3                                  |
| mgmt_mac              | 00:1e:67:54:aa:39                              |
| operational           | enabled                                        |
| personality           | controller                                     |
| reserved              | False                                          |
| rootfs_device         | /dev/disk/by-path/pci-0000:04:00.0-sas         |
|                       | -0x5001e6754aa38000-lun-0                      |
| serialid              | None                                           |
| software_load         | 20.06                                          |
| task                  |                                                |
| tboot                 | false                                          |
| ttys_dcd              | None                                           |
| updated_at            | 2020-02-28T15:17:06.658008+00:00               |
| uptime                | 159970                                         |
| uuid                  | 92c86da2-adb7-4fb2-92fc-82759e25108d           |
| vim_progress_status   | services-enabled                               |
+-----------------------+------------------------------------------------+