[1237] in Kerberos
Re: Time Synchronization for IBM VM and MVS System
daemon@ATHENA.MIT.EDU (Richard Hintz)
Fri Feb 8 14:34:23 1991
Date: Fri, 08 Feb 91 09:08:43 PST
From: Richard Hintz <OPSRJH@uccvma.ucop.edu>
To: Galina Kofman <GALINA@IBM.COM>
Cc: kerberos@ATHENA.MIT.EDU, ibmjsh@UCCVMA.MIT.EDU
In-Reply-To: <9102071954.AA02390@ATHENA.MIT.EDU>
On Thu, 7 Feb 91 14:54:31 EST you said:
>***** Reply to your note of: Thu, 7 Feb 91 12:12:04 EST ******************
>We at IBM recognize the necessity of time synchronization.
>We looking into possibility of implementing ntp or dtp.
I guess I understand from this reply is that it is technically
not possible to use VM as a Kerberos authentication server for
application clients and servers not residing on the same
machine.
It would seem that there would be formidable obstacles to
implementing ntp or dtp on 3090 class mainframes (as anyone who
has every initialized a 3090 system and set the TOD clock would
probably corroborate).
I hope that the solution doesn't require the IBM Sysplex Timer.
At a list price of $32,000, it's expensive and doesn't even
exploit the current network time sync technology (since it dials
NIST instead of referring to the Stratum-1/2 etc. time
referents).
Richard Hintz opsrjh@uccvma.ucop.edu opsrjh@uccvma
University of California
