Date: Fri, 2 Jan 2004 21:26:27 +0100 From: Wilko Bulte <wkb@freebie.xs4all.nl> To: Andre Guibert de Bruet <andy@siliconlandmark.com> Cc: current@freebsd.org Subject: Re: Hot Swapping CPUs? Message-ID: <20040102202627.GC65653@freebie.xs4all.nl> In-Reply-To: <20040102143551.H9356@alpha.siliconlandmark.com> References: <E3246F06C06F1949B569B84C48AA9C7A1958FF@butters.2advanced.com> <20040102143551.H9356@alpha.siliconlandmark.com>
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On Fri, Jan 02, 2004 at 03:14:08PM -0500, Andre Guibert de Bruet wrote: > > On Fri, 2 Jan 2004, Jeff Jirsa wrote: > > > [ I can't send to the list, since this location lacks RDNS, but feel > > free to send followups to the list if you feel they're of use ] > > > > > Find me a x86 motherboard (with specs, preferably) that supports cpu > > > failure-monitoring and hot-swapping and I'll volunteer time to hack up > > > some code for you. (We have a need for this functionality in > > > our x86-farm at work, so I'd get to do it on the clock. :) ) > > ... > you've realized that a CPU on your production online system has failed and > 7AM when the system vendor's 4hr response team shows up. Powering down a > system for a proc replacement causes a 5 minute downtime window which will > still let you maintain 99.99904% availability (based on a 365.25 day > year). 5 minutes? Forget that for serious (non-x86 ;-) servers with Gigs and gigs of memory and tons of I/O adapters. It takes >> 5 minutes to boot those buggers.. -- | / o / /_ _ |/|/ / / /( (_) Bulte wilko@FreeBSD.org
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