W dniu 16.07.2020 o 09:28, Gadi Ben-Avi pisze:
Hi,
I was asked to make sure that the mainframes are using the same time source as
the rest of the computers on our network.
I know what the NTP servers are in our network.
In the HMC, I found 'Customize Console Date/Time'
I added the NTP servers to the screen, and they seem to have been accepted.
(I did this for our DR computer)
Do I have to do anything else?
We are currently running z13s's if that matters.
This is part of the things you have to do.
First, check your hardware list - I mean list of features delivered
(feature codes). You have to have STP enablement. This is replacement of
sysplex timer, but it is also prerequisite for synchronisation with NTP.
Next is to enable STP network, which is rather simple in case of single
CPC, but it is reported as disruptive.
Next is to change CLOCKxx member and reIPL.
Oh, do it slowly. A mistake may cause you will have to start over. And
delete existing setup which is also reported as disruptive.
BTW: There is also option to use "very accurate" time source - in that
case you have to connect it directly to CPC using coax (you can find BNC
connectors).
--
Radoslaw Skorupka
Lodz, Poland
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