Who is going to dial-out if not STP?

>>> Arthur Gutowski <aguto...@ford.com> 12/19/2008 11:47 AM >>>
On Thu, 18 Dec 2008 23:10:15, Roy Hewitt <ibm-
m...@frozen.eclipse.co.uk> wrote:

>it's still STP that you need... why not have a look at the redbook.
>
>Server Time Protocol Implementation Guide, SG24-7281-01 (latest draft)
[...]
>The NTP ability of STP (via the SE) is a version 2 (or is it v3?? ) enhancment 
to STP.. but bottom line is you still need either Sysplex timer or STP to sync 
any zSeries to external time source.

If I read correctly, the OP later clarified he currently has no sysplex timer - 
single CEC, multiple LPARs - i.e., all monoplex.  If that is true, then I read 
nothing in STP Implementation that states SIMETRID with an external dial-out 
to the atomic clock in the sky won't still work in this case.  z/OS gets the 
time 
just fine without STP.

To the original query of keeping in synch with the tinkertoy farm, 
participating 
in timing network is another matter...  

As an NTP Server, I get why STP is a prerequisite, *but* if the z10 (z9) is a 
client, is STP FC 1021 still required to receive the timing signal from an NTP 
server versus a dial-out, and WHY?

Regards,
Art Gutowski
Ford Motor Company

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