From owner-freebsd-isp Thu Jul 26 5:22:42 2001 Delivered-To: freebsd-isp@freebsd.org Received: from beta.root-servers.ch (gamma.root-servers.ch [195.49.62.126]) by hub.freebsd.org (Postfix) with SMTP id DD61337B401 for ; Thu, 26 Jul 2001 05:22:33 -0700 (PDT) (envelope-from gabriel_ambuehl@buz.ch) Received: (qmail 23483 invoked from network); 26 Jul 2001 12:22:32 -0000 Received: from dclient62-2-106-29.hispeed.ch (HELO athlon550) (62.2.106.29) by beta.root-servers.ch with SMTP; 26 Jul 2001 12:22:32 -0000 Date: Thu, 26 Jul 2001 14:23:52 +0200 From: Gabriel Ambuehl X-Mailer: The Bat! (v1.53bis) Educational Organization: BUZ Internet Services X-Priority: 3 (Normal) Message-ID: <19297458367.20010726142352@buz.ch> To: Alexander Leidinger Cc: freebsd-isp@freebsd.org, freebsd-cluster@freebsd.org Subject: Re[2]: Redundant setup on a budget?? In-Reply-To: <200107261043.f6QAh3v02375@Magelan.Leidinger.net> References: <200107261043.f6QAh3v02375@Magelan.Leidinger.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org -----BEGIN PGP SIGNED MESSAGE----- Hello Alexander, Thursday, July 26, 2001, 12:43:02 PM, you wrote: >> Hmm. This is FreeBSD >4.0... Not exactly portable, but I suspect > We are talking in FreeBSD-isp... and you didn't want to use 3.x > because of the not fixable local root exploit (the fix is to > upgrade to 4.x). So what? Duuh. I sure as hell won't consider using 3.X but I was referring to the whole Linux crowd with the portability. OTOH, they already got enough solutions to solve the realtime replication mess anyway. BTW: Greg Lehey just contacted me about the nbd stuff and while he hasn't got the time to do it, he referred to some other company but those didn't yet even show up with a preliminary quote (but I suspect this is going to be very expensive). >> there's no such thing as a portable approach to something like >> this. > A portable solution would have to poll... and we didn't want to do > that, right? Exactly. Polling is way to slow. >> On the first glance it looks pretty complex but... > It depends... Read through it a bit more concentrated today and found it probably doesn't help anyway: EVFILT_VNODE Takes a file descriptor as the identifier and the events to watch for in fflags, and returns when one or more of the requested events occurs on the descriptor. The events to monitor are: I interpret this like it's good for monitoring single vnodes, but not entire filesystem. If somebody could get 5 CURRENT to build again (judging by current.freebsd.org, it didn't do so since the 18.6.01), I probably could work with http://people.freebsd.org/~abial/spy. The developer didn't answer my mail regarding a backport to 4.3 so far... >> I currently prefer to work on my monitoring system until it at >> least is alpha quality (i.e. enough for inhouse use ;-) but after >> that I'm interested in this kind of stuff. > Just call me back then. I probably forget about it but I'll try to remember ;-) Best regards, Gabriel -----BEGIN PGP SIGNATURE----- Version: PGP 6.5i iQEVAwUBO1/9zMZa2WpymlDxAQHujAf+OkfSB3lLccpZc0EpfvE3qXFcP1ufScKo yo4Do50ESzjLmpCVQ58oqxkEDoTf8Al2U8PVNwxmVgv1GUEJs+aTxBX9pCCm+Cqp NUbV2KADTJeJvWILQVQpH9CBXyfpOPj06IWdRIPCvgZ5M9oucfRJSkOm8H+UPOyq G2nX395zviqMK8/2cF1yIM5byzVm+RlVh3Yff4owB+zEl/DE7uiF6+RxcIdW9BAs UCBrNAF8TaH6fcy4KnfOnblT3OuTUzDUmMAsVYjQyOmLt/zpttUex2rfyLVQI0zt QLJHuYGGZ4WJ2gDonMsM4JeJAE3a4IIM9p8t2C9bSyMadKmpP4FeYA== =C8kk -----END PGP SIGNATURE----- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message