ONTAP 9タイムサーバが信頼性が低いため拒否されました

環境

• ONTAP 9
• NTP

問題

• システム時刻が正しくありません。
• NTPサーバの設定が次のエラーで失敗します。

Error: command failed: NTP server "123.234.111.222" root error rate of 1.357 is above the limit (16).

• ONTAPに追加されたNTPサーバーServer Not Responding or Too Distantまたは Server Rejected as Unreliable

例：

::*> cluster time-service ntp status show

Node: node-01
Server                  Reachable  Selection State                Offset (ms)
----------------------- ---------  ------------------------------ ------------
10.0.0.31                    true  Server Not Responding or Too   -28532821.493
                                   Distant
10.0.0.32                    true  Server Not Responding or Too   -28532821.498
                                   Distant
                                   
::*> cluster time-service ntp status show

Node: node-01
Server                  Reachable  Selection State                Offset (ms)
----------------------- ---------  ------------------------------ ------------
10.0.0.12                 true  Server Rejected as Unreliable        69.419
10.0.0.1                  true  Server Rejected as Unreliable      -503.64