Re: Network Time Protocol (NTP) client support question

The z/9 cannot be a SNTP client, but there are hardware features to sync
the z/9 hardware clock to a secondary or primary standard (NIST). That
once was the now withdrawn sysplex timer and is now software loaded in
the HMC.

If your SMTP server is also in sync with NIST, then the requirement
should be satisfied.



-----Original Message-----
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@xxxxxxxxxxx] On
Behalf Of Chauhan, Jasbir
Sent: Tuesday, June 17, 2008 2:31 PM
To: IBM-MAIN@xxxxxxxxxxx
Subject: Re: Network Time Protocol (NTP) client support question

Thanks for all your responses. 2nd Level support too came back with the
'z/OS currently is not implemented as SNTPD client' response. However,
they did add my name to the list of their 'Marketing database inquiries'
for such a request. Apparently there are others who have made similar
requests but the numbers aren't enough to get any consideration. The
fact that it would require a design change would lead me to believe that
there was no immediate plan to add this feature in the upcoming z/OS
releases either.



Unfortunately, the PCI standard is big on absolute statements such as
"Synchronize all critical system clocks and times" and "Verify that NTP
or similar technology is used for time synchronization". Anything that
does not meet the specified standards must have a compensating control
that meets and exceeds the requirement.



The assessor on-site, is here to both ensure we are in compliance with
the PCI standard and to help us find solutions to help us comply. In
our discussion yesterday he specifically stated that setting time
manually has not been accepted by Visa in their review of similar PCI
reports. Hopefully, we can come up with a compromise.



Best Regards,

Jasbir

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@xxxxxxxxxxx] On
Behalf Of Edward Jaffe
Sent: Tuesday, June 17, 2008 11:27 AM
To: IBM-MAIN@xxxxxxxxxxx
Subject: Re: Network Time Protocol (NTP) client support question









Keep in mind that the TOD clock represents GMT (or UTC). Local time is

calculated by adjusting GMT by CVTLDTO and CVTLSO. If the TOD drifts by

a second or more, you can fix local time with a compensating adjustment

to the time zone offset. See SET TIMEZONE= command.



--

Edward E Jaffe

Phoenix Software International, Inc

5200 W Century Blvd, Suite 800

Los Angeles, CA 90045

310-338-0400 x318

edjaffe@xxxxxxxxxxxxxxxxxxx

http://www.phoenixsoftware.com/



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