Dell Unity:無法與具有 6 或更高階層值的 NTP 伺服器同步
Summary: Unity 陣列無法與具有 6 或更高階層值的 NTP 伺服器同步。 Unisphere 中未顯示任何錯誤,但 Unity 時鐘並未同步處理。
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Symptoms
在此範例中,可連線到 NTP 伺服器,但 Unity 無法與它同步,因為階層值設為 6。這可從命令的
svc_ntp -i 輸出來決定;NTP 伺服器的行開始時沒有「*」符號。
06:40:01 service spb:~/user# svc_ntp -i NTP Status: remote refid st t when poll reach delay offset jitter ============================================================================== xxx.xxx.xxx.xxx LOCAL(0) 6 u 67 64 377 0.156 637.565 0.105 *peer 127.0.0.1 6 s 15 64 376 0.026 0.089 0.124 List of associations: ind assid status conf reach auth condition last_event cnt =========================================================== 1 45538 9024 yes yes none reject reachable 2 2 45539 961a yes yes none sys.peer sys_peer 1 List of servers in ntp.conf: server xxx.xxx.xxx.xxx iburst prefer Timestamps: hwclock:1667976004 systime:1667976004 uptime:434601.65 Detailed Timestamps: Wed Nov 9 06:40:05 UTC 2022 Wed Nov 9 06:40:06 2022 -0.953423 seconds 06:40am up 5 days 0:43, 6 users, load average: 112.37, 112.83, 113.09
Cause
其中
/etc/ntp.conf 有下列行可防止 ntpd 與具有 6 或更高階層值的 NTP 伺服器同步處理。
tos orphan 6Resolution
- 使用以 5 或更小階層值設定的 NTP 伺服器。
等待 10 分鐘左右,然後執行
svc_ntp -s 命令以確認 ntpd 是否與 NTP 伺服器同步。輸出的 NTP 專案左側應有星號,且階層值 (st) 應為 5 或更小。
06:58:01 service spb:~/user# svc_ntp -i NTP Status: remote refid st t when poll reach delay offset jitter ============================================================================== * xxx.xxx.xxx.xxx LOCAL(0) 5 u 35 64 377 0.170 -0.123 0.041 peer 127.0.0.1 6 s 47 64 37 0.059 -637.13 0.102 List of associations: ind assid status conf reach auth condition last_event cnt =========================================================== 1 25293 961a yes yes none sys.peer sys_peer 1 2 25294 9014 yes yes none reject reachable 1 List of servers in ntp.conf: server xxx.xxx.xxx.xxx iburst prefer Timestamps: hwclock:1667977331 systime:1667977331 uptime:435927.21 Detailed Timestamps: Wed Nov 9 07:02:12 UTC 2022 Wed Nov 9 07:02:13 2022 -0.953428 seconds 07:02am up 5 days 1:05, 7 users, load average: 112.32, 112.49, 112.74
- 請聯絡 Dell 技術支援或您的授權服務供應商編輯
/etc/ntp.conf檔案,並變更下列行中的值,以支援大於預設值 5 的階層值,因為此方法需要根存取。
tos orphan 6
支援的最大值為 15。
例子:
# cp /etc/ntp.conf /cores/service/user/ntp.conf.bak # sed -i -e 's/tos orphan 6/tos orphan 7/g' /etc/ntp.conf # diff /etc/ntp.conf /cores/service/user/ntp.conf.bak 86c86 < tos orphan 7 --- > tos orphan 6
接著,執行下列命令:
svc_ntp -s
注意:在 Unity OE 升級後,該
tos orphan 值 /etc/ntp.conf 可能會還原至原始值。
注意:如果時差過大,則可能需要重新開機儲存處理器 (SP),才能使變更生效。
Affected Products
Dell EMC UnityArticle Properties
Article Number: 000205159
Article Type: Solution
Last Modified: 09 Jun 2023
Version: 2
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