From owner-freebsd-hardware@freebsd.org Sat Aug 1 02:03:43 2015 Return-Path: Delivered-To: freebsd-hardware@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 6A62F9AEB9B for ; Sat, 1 Aug 2015 02:03:43 +0000 (UTC) (envelope-from erichsfreebsdlist@alogt.com) Received: from alogt.com (alogt.com [69.36.191.58]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 391011954; Sat, 1 Aug 2015 02:03:42 +0000 (UTC) (envelope-from erichsfreebsdlist@alogt.com) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=alogt.com; s=default; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:Cc:To:From:Date; bh=rLz+gg51caEvcr+Etjddpnb9HGVmPGIrOsJuf+bqFuk=; b=Duo6OSn4bUkVeVv43RwLNSnqNiSZoD8a/J8cDCc4Vt0Qua0apNo91eLOLd/xpZmnPCDR0vfTTWFwr2rR90EfxGieovX0hjACnd+WZKfsm5QV8ux77yPBMMcIamezatO2UwGSgSs0aXRvDasV2FhuOsC+zeuXDFvUAAXh3csOCzo=; Received: from [114.124.29.22] (port=27303 helo=X220.alogt.com) by sl-508-2.slc.westdc.net with esmtpsa (TLSv1.2:AES128-GCM-SHA256:128) (Exim 4.85) (envelope-from ) id 1ZLM9D-002yAX-S8; Fri, 31 Jul 2015 20:03:40 -0600 Date: Sat, 1 Aug 2015 10:03:33 +0800 From: Erich Dollansky To: Willem Jan Withagen Cc: Josh Paetzel , 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> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - sl-508-2.slc.westdc.net X-AntiAbuse: Original Domain - freebsd.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - alogt.com X-Get-Message-Sender-Via: sl-508-2.slc.westdc.net: authenticated_id: erichsfreebsdlist@alogt.com X-Source: X-Source-Args: X-Source-Dir: X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 01 Aug 2015 02:03:43 -0000 Hi, On Fri, 31 Jul 2015 09:31:53 +0200 Willem Jan Withagen wrote: > On 31/07/2015 07:22, Erich Dollansky wrote: > > On Tue, 28 Jul 2015 21:45:03 +0200 > > Willem Jan Withagen 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