AFAIK, the external hardware ETR syncs to NIST via dialup. I am not sure how the new facility will work. I assume it will also use NIST or equivalent time service. NTP is good, but I am not so sure it is good enough for the MF's needs.
I have never seen or heard of any 'guaranteed accuracy'. In fact I have such an issue with three different TKE's I have never gotten around to grumping about. -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Paul Gilmartin Sent: Friday, May 12, 2006 5:16 PM To: IBM-MAIN@BAMA.UA.EDU Subject: Re: TOD clock discussion. In a recent note, Hal Merritt said: > Date: Fri, 12 May 2006 15:45:10 -0500 > > Compare to most any industrial equipment (to include the MF) that uses time. They almost always have a high quality clock that is accurate to milliseconds per fortnight without any outside help. > I have never seen a spec on the guaranteed accuracy of the TOD clock standalone. Have you a citation? Has IBM ever in the lore been known to replace one that was out of spec? By how much? Or do you mean with an ETR, in which case it's as accurate as whatever it syncs to? -- gil -- StorageTek INFORMATION made POWERFUL ---------------------------------------------------------------------- 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 NOTICE: This electronic mail message and any files transmitted with it are intended exclusively for the individual or entity to which it is addressed. The message, together with any attachment, may contain confidential and/or privileged information. Any unauthorized review, use, printing, saving, copying, disclosure or distribution is strictly prohibited. If you have received this message in error, please immediately advise the sender by reply email and delete all copies. ---------------------------------------------------------------------- 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
