AS400 NTP配置應(yīng)使用 iSeriesNavigator,操作步驟如下:
(1)配置SNTPClient,Server->Network->Servers->TCPIP,在顯示的列表中選擇
SNTP,右擊“屬性”。
(2)在打開的屬性框內(nèi),選General板塊,選擇“Start When TCP/IP started”,配置時間服務(wù)器地址與同步間隔(單位:分鐘)?;蛘咴诳蛻魴C中配置服務(wù)器IP地址。
(3)選擇“AdditionalParameters”,
日志配置為“None”
MiniMum 20
MaxiMum 5
In the Additional Parameters tab as shown inthe Figure 5-3 specify the minimum and maximum difference.100 V5 TCP/IPApplications on the IBM Eserver iSeries Server– The Minimum adjustment specifies the smallesttime difference in milliseconds,between the time server and the softwareclock that the SNTP client attempts to correct so if the time difference is lessthan the specified value the SNTP client. Possible values are 20 through 300000milliseconds. We specify the value as 100milliseconds which is 1/10th of a second.
– The Maximum adjustment specifies the maximumtime difference in minutes which is
allowed between the time server and SNTP client’s software clock for the adjustmentsto happen. Possible values are 5 through 30minutes. We select it to be 20 minutes.
(4)啟動SNTP服務(wù)
會到sntp界面,點擊右鍵,選擇以客戶端啟動。
(5)檢查 Joblog ofQTOTNTP <=== 這個作業(yè)必須啟動, 如果沒有啟動 STRTCPSVR *NTP *client, 就沒有這個作業(yè)。
NTP Server 和 Clientjob 都是 QTOTNTP作業(yè)支持。
也可以利用命令行配置
remote system中添加服務(wù)器的IP
在remote system中添加服務(wù)器的IP,可添加多個。
在client autostart中修改為yes,開機啟動
client poll interval設(shè)置為10,即每隔10分鐘發(fā)一次請求;
設(shè)置調(diào)整門限client minimum adjustment和maximum adjustment,即如果與時間服務(wù)器差距小于20毫秒或者差距大于60分鐘本機就不作調(diào)整;
設(shè)置client adjustment threshold為maxadj,即只對時間進行微調(diào)而不是重置。
AS400緩慢調(diào)整大約是60s以外是每秒調(diào)整30秒,60s以內(nèi)是每秒調(diào)整6秒,AS400同步后時間精度非常高,可達到0.01ms。
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