Re: [Xen-users] Time/clock issues with Xen 3.0.3?

[Harald Koenig <H.Koenig@xxxxxxxxxxxxxxxxxxxx>]

On Nov 29, Chad Oleary wrote:

> ntp is to correct drift. It was not designed be the clock itself. If the. 
> clock doesn't keep proper time, do you add more clocks to keep it correct? 
> No, you fix the clock.

so what's your suggestion to fix frequency errors of cheap quartz crystals ?
and how about temperature drift of the crystal etc ?
soldering every PC main board with temperature controlled  oscilators
(or better a rubidium clock or similar) just isn't feasible for everybody...

> Ntp has it's place. But, it doesn't work well with a broken clock. Throwing 
> ntp at this is inappropriate.

so throw away every PC based hardware ?  hmmm...

do you have any better suggestion how to synchronize a network of (e.g. build) 
servers
(mixed Linux and legacy un*x) to a common sense of "time" with max. time 
offsets 
far below 1 sec over a period of weeks to months ?


Harald Koenig
-- 
"I hope to die                                      ___       _____
before I *have* to use Microsoft Word.",           0--,|    /OOOOOOO\
Donald E. Knuth, 02-Oct-2001 in Tuebingen.        <_/  /  /OOOOOOOOOOO\
                                                    \  \/OOOOOOOOOOOOOOO\
                                                      \ OOOOOOOOOOOOOOOOO|//
Harald Koenig                                          \/\/\/\/\/\/\/\/\/
science+computing ag                                    //  /     \\  \
koenig@xxxxxxxxxxxxxxxxxxxx                            ^^^^^       ^^^^^

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