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Newsgroups: comp.unix.bsd.freebsd.misc Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!msunews!news.mtu.edu!sol.ctr.columbia.edu!howland.reston.ans.net!tank.news.pipex.net!pipex!news.mathworks.com!gatech!swrinde!news.uh.edu!uuneo.neosoft.com!nmtigw!peter From: peter@nmti.com (Peter da Silva) Subject: Re: Backing up the whole 9 yards...??? Message-ID: <id.XFYM1.FFA@nmti.com> Sender: peter@nmti.com (peter da silva) Organization: Network/development platform support, NMTI References: <DDHIzE.25r@agora.rdrop.com> <id.SCRM1.LNA@nmti.com> <41hdeu$c6@news.cloud9.net> Date: Wed, 30 Aug 1995 19:54:20 GMT Lines: 44 In article <41hdeu$c6@news.cloud9.net>, Thor Lancelot Simon <tls@cloud9.net> wrote: > Unfortunately, neither DAT nor Exabyte are good enough for many types of > production systems, although they're the only thing that's cheap enough > for many applications. I don't care *what* kind of MTBF the > manufacturers claim -- helical-scan tape drives that _aren't_ run in a > clean room, as I suspect the MTBF tests are, show service lifetimes in > the single-digit months when subjected to heavy use on a daily basis. We've been using Exabyte 8200s and 8500s daily for several years now with no problems. We've had two drives go out, and one of those was a power supply. Though I've resigned myself to replacing my VCR every 18-24 months. > If > you plan to use DAT for something important, it's essential to buy a spare I'd change this to: if you're using *anything* for anything important, it's essential to buy a spare. I'm not always successful, but I try very very hard to avoid getting *one* of anything for production use. Even if that anything is a tape backup for an NT box (ick), I'm using Exabyte because we have spares. > DLT would be a good answer -- a great answer, really -- but the tapes cost > three or four times what DAT tapes cost, even the ones that only store a > little bit more data. They're *way* faster. We get about 3 times the transfer rate for DLT over DAT... and what were you saying about helical scan in production use? > No kidding. But you really, really, really, REALLY should use the > Kerberos support if you're using its network features; IP spoofing makes > them extremely dangerous. We have our production network separate from our financial network, and they're proxy-firewalled from the Internet. Kerberos I haven't figured out yet. It's sort of soggy and hard to light. -- Peter da Silva (NIC: PJD2) `-_-' 1601 Industrial Boulevard Bailey Network Management 'U` Sugar Land, TX 77487-5013 +1 713 274 5180 "Har du kramat din varg idag?" USA Bailey pays for my technical expertise. My opinions probably scare them