From: "moto.dood" > Hi, i am new to the mainframe thing and have been charged with the task > of determining what would happen if the ETR device were out of wack. > We have several LPARs, an ETR device, and two Atomic Clock sync devices > that are connected to the ETR. I was wondering if anyone could tell me > what would happen if the two Atomic clock devices were taking offline > (not connected to the ETR device) for any length of time (say 1 hour, 1 > day, 1 week, and 1 month). > > I searched the IBM redbooks and couldn't come up with anything > concrete. From what I gather, there would be some "time drift" -- but > I'm not too sure how severe or significant that would be. Any help you > guys can provide would be really appreciated.
There is *always* clock drift - how much and how significant can only be determined by allowing it to happen. If you can't allow that to happen, don't. Put procedures in place to ensure the input(s) never fail. Other than that, if the drift is within tolerance (4.99 secs ???), the ETR will auto-adjust whilst still maintaining guaranteed unique time. If outside tolerance, it will reject the connection I believe - you will need to manually adjust the ETR in (the above)increments until within tolerance - this will take (many) days to achieve. Shane ... ---------------------------------------------------------------------- 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
