Date: Fri, 30 Aug 2002 14:11:07 -0700 From: "Kevin Oberman" <oberman@es.net> To: "Jack L. Stone" <jackstone@sage-one.net> Cc: Brooks Davis <brooks@one-eyed-alien.net>, "David W. Chapman Jr." <dwcjr@inethouston.net>, stable@FreeBSD.ORG Subject: Re: Updating world with least downtime Message-ID: <20020830211107.8251F5D06@ptavv.es.net> In-Reply-To: Your message of "Fri, 30 Aug 2002 15:40:31 CDT." <3.0.5.32.20020830154031.020e3b90@mail.sage-one.net>
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> Date: Fri, 30 Aug 2002 15:40:31 -0500 > From: "Jack L. Stone" <jackstone@sage-one.net> > Sender: owner-freebsd-stable@FreeBSD.ORG > > At 01:26 PM 8.30.2002 -0700, Brooks Davis wrote: > >On Fri, Aug 30, 2002 at 03:07:14PM -0500, Jack L. Stone wrote: > >> Yes, that's what I do after taking an image of the drive and also using the > >> "build box" as the first test to see if everything works okay. Downtime is > >> only a matter of seconds... riskier, yes, but acceptable with the image to > >> fall back on. Dropping to the single-user mode causes a downtime of about > >> 30 minutes otherwise on a 1.4G CPU machine... longer on slower machines. > >> Everthing is now done via scripts. > > > >If it's taking that long, it's got some serious problems even with the > >rediculous post times many boards have today. My laptop (with 3400RPM > >disk) takes <15. > > > >-- Brooks > > > > I don't believe your laptop does installworld, mergemaster, etc all in 15 > minutes.... we must must be talking different things.... For a modern system and a reasonable disk, this is trivial. I have a system which MUST not be down for over 15 minutes and I can do it quite easily unless I really fumble something in mergemaster. I do always merge a few files later and tend to install most changes very quickly, having ode the same upgrade on a non-critical system just before I do the critical one so I know what to expect. The actual installworld time on my 1GHZ system is about 5 minutes (5:34 last time). R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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