On Thu, 20 Aug 2009 00:06:39 -0500, Angel-Luis Dominguez wrote:
>Have a look at FILE 501 from CBT.
>
>It is a very simple and effective way to sync every machine, even PC's
>obtaining directly time from mainframe.
>
There's a struggle here that's as much political as technical.
If your IT czar is a partisan of non-mainframe systems, and those
systems are now synched to a high-stratum NTP server, you must
prove that the mainframe with SNTP is a more accurate reference,
else why should they switch? And the README in CBT 501 says:
4) Verify your sysplex timer:
- it must be set to UCT (GMT) time with your local offset
- be sure it has the correct time and syncs to a "good"
time source regularly. There's no point to having the
wrong time.
- warning! in case you don't know, NEVER "set" the 9037,
always "adjust" it. Max adjustment is +/- 5.00 seconds per day.
5) Start the server (S SNTP)
- be sure both TCPIP and SNTP have a high enough dispatching
priority to provide a consistent response
There are obvious hazards here. And the argument that the
mainframe must be the reference is self-defeating: "If
the mainframe won't sync to anything else, what keeps it
accurate?"
-- gil
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html
