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Open Source and information security mailing list archives
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Date: Tue, 19 Jun 2007 12:28:02 -0700 (PDT) From: david@...g.hm To: Phillip Susi <psusi@....rr.com> cc: Brendan Conoboy <blc@...hat.com>, Lennart Sorensen <lsorense@...lub.uwaterloo.ca>, Neil Brown <neilb@...e.de>, Wakko Warner <wakko@...mx.eu.org>, linux-kernel@...r.kernel.org, linux-raid@...r.kernel.org Subject: Re: limits on raid On Tue, 19 Jun 2007, Phillip Susi wrote: > david@...g.hm wrote: >> one channel, 2 OS drives plus the 45 drives in the array. > > Huh? You can only have 16 devices on a scsi bus, counting the host adapter. > And I don't think you can even manage that much reliably with the newer > higher speed versions, at least not without some very special cables. 6 devices on the bus (2 OS drives, 3 promise drive shelves, controller card) >> yes I realize that there will be bottlenecks with this, the large capacity >> is to handle longer history (it's going to be a 30TB circular buffer being >> fed by a pair of OC-12 links) > > Building one of those nice packet sniffers for the NSA to install on AT&Ts > network eh? ;) just for going back in time to track hacker actions at a bank. I'm hopeing that once I figure out the drives the rest of the software will basicly boil down to tcpdump with the right options to write to a circular buffer of files. David Lang - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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