Date: Sat, 1 Aug 2015 10:03:33 +0800 From: Erich Dollansky <erichsfreebsdlist@alogt.com> To: Willem Jan Withagen <wjw@digiware.nl> Cc: Josh Paetzel <jpaetzel@FreeBSD.org>, freebsd-hardware@freebsd.org Subject: Re: L2 cache errors??? Message-ID: <20150801100333.3c082698@X220.alogt.com> In-Reply-To: <55BB2469.5040507@digiware.nl> References: <55B7B8FA.2060800@digiware.nl> <55B7C059.5020701@sentex.net> <55B7CCA1.4020906@digiware.nl> <55B7D24B.5060709@FreeBSD.org> <55B7DBBF.2090009@digiware.nl> <20150731132251.5b8581c2@X220.alogt.com> <55BB2469.5040507@digiware.nl>
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Hi, On Fri, 31 Jul 2015 09:31:53 +0200 Willem Jan Withagen <wjw@digiware.nl> wrote: > On 31/07/2015 07:22, Erich Dollansky wrote: > > On Tue, 28 Jul 2015 21:45:03 +0200 > > Willem Jan Withagen <wjw@digiware.nl> wrote: > > > >> On 28/07/2015 21:04, Josh Paetzel wrote: > >> > >> Offlining CPus, cool. > > > > and bringing them back online when the problem is fixed. The > > hardware there supports that things get changed while the system is > > running. A PC costs normally less than the extra hardware required > > to do this. > > Yes, I can imagine things being expensive. > > Probably like high-end routers... There you can swap also just about > anything.. Expensive got a complete new meaning when I saw a set of 3 > core routers being delivered at a friends ISP with a pricetag > > 1.000.000 euros... Fortunately it was list price, but even still: A > lot of money. yes, this are common price tags in this area. > Although I've grown to look at HA as: > don't put it all in one (expensive) box, > but get more (cheaper) boxes, > But I guess there are places where this doesn't work. It is also a matter of effort. The moment the application software has to be adapted, it might be pointless to do it on cheap machines. Google & Co. is a typical case for cheap hardware. It does not matter for the normal user if things get even lost or delayed. It is a different story for banks, manufacturing or people like UPS. Erich
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