Date: Thu, 26 Jun 1997 02:58:04 -0700 From: David Greenman <dg@root.com> To: grog@lemis.com (Greg Lehey) Cc: chat@FreeBSD.ORG (FreeBSD Chat) Subject: Re: Dual Log Stats - 1997/06/26 (wcarchive.cdrom.com) Message-ID: <199706260958.CAA03114@implode.root.com> In-Reply-To: Your message of "Thu, 26 Jun 1997 17:45:20 %2B0800." <199706260945.RAA01371@papillon.lemis.com>
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>David Greenman writes: >>> Bytes transferred : 185,490,560,785 > >Nice > >Out of interest, what's the uptime like? How often does the system go >down, for what reasons, and for how long? > >This isn't just idle interest. Tandem, who are still in the UNIX >business, claim that their Integrity machines are ideal for this sort >of thing. I haven't seen anything like this performance, but I was >wondering what the up time was like. FWIW, the last figures I recall >from Tandem were something like 99.99% uptime, which translates to >about 53 minutes a year. I'd be interested to see how much worse (if >at all) wcarchive is. Since upgrading to 2.2.x, we've had only one failure (a system hang) that is thought to have been already fixed. I noticed the problem only minutes after it occured, and rebooted the machine. Total unscheduled downtime is about 15 minutes in the past 6 months. The machine has also been down for hardware upgrades and repairs (disk drives) a couple of times for an hour or so. Tandem's business is fault tolerant hardware systems, and I'm sure they beat us in that category hands down. -DG David Greenman Core-team/Principal Architect, The FreeBSD Project
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