Date: Fri, 17 Dec 1999 20:38:46 -0600 From: Karl Denninger <karl@Denninger.Net> To: Greg Lehey <grog@lemis.com> Cc: Wilko Bulte <wilko@yedi.iaf.nl>, Warner Losh <imp@village.org>, Soren Schmidt <sos@freebsd.dk>, freebsd-hackers@FreeBSD.ORG Subject: Re: Tape reliability (was: ATAPI tape support - how to format?) Message-ID: <19991217203846.A34611@Denninger.Net> In-Reply-To: <19991218125441.C1108@freebie.lemis.com>; from Greg Lehey on Sat, Dec 18, 1999 at 12:54:42PM %2B1030 References: <199912130738.IAA28004@freebsd.dk> <199912131731.KAA44607@harmony.village.org> <19991213192545.D636@yedi.iaf.nl> <19991213125520.A567@Denninger.Net> <19991218120832.A1108@freebie.lemis.com> <19991217201910.A34455@Denninger.Net> <19991218125441.C1108@freebie.lemis.com>
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On Sat, Dec 18, 1999 at 12:54:42PM +1030, Greg Lehey wrote: > On Friday, 17 December 1999 at 20:19:10 -0600, Karl Denninger wrote: > > On Sat, Dec 18, 1999 at 12:08:32PM +1030, Greg Lehey wrote: > >> On Monday, 13 December 1999 at 12:55:20 -0600, Karl Denninger wrote: > >>> > >>> BTW, I have older HP DAT drives (4 & 8gb models) that have several YEARS > >>> of active use on them, and other than using a cleaning tape when the front > >>> panel "clean me" light flashes I've NEVER had ANY problem with them. > >> > >> This is in stark contrast with my experience. Which models? The > >> 35480A DDS-1 drives I had had a life of about 8 months with daily > >> backups. > > > > C1533As, circa 1994. I have two of them and they are still working. > > I had one of them. In fact I still do, and it didn't fail on me; it > got damaged in transit instead, and I never got it repaired. Ah. Well, they're good drives. I still have one in my production machine; its all original (still has a 9406 firmware stamp!) ;-) > > They were in use at an *ISP* as primary backup devices for more than > > two years (read: had the shit beaten out of them nightly) until we > > outgrew them and went to Exabyte 8705s (which SUCKED > > reliability-wise, although they're better than the 8500s!). > > I've never used an 8700. My 8505XL still seems to be working, the > 8500 before it wore out. I had 8505XLs too - they sucked badly as well. My luck with Exabytes has been somewhere between shit and worse. I could tell you horror stories from the early 90s on production machines that ate their tapes or worse, wrote tapes that couldn't be restored...... > > The final step was to go to two DLT IIIXTs (after that I have no > > idea; I don't run the place anymore) > > I'm having trouble with a Quantum DLT4000 right now, but it looks like > a compatibility problem. I still have the two IIIXTs - they're overkill for my network at the house but they work and the price was right. :-) > > Their predecessors, two 35480As, were replaced ONLY for capacity reasons. > > As far as I know *those* are still working (I know where one of them is and > > its not broken) > > > > I've never had trouble with HP DAT drives. None whatsoever. > > Amazing. I certainly had your share of the trouble as well. That's ok - I got your share of trouble with the Exabytes, so we're even ;-). -- -- Karl Denninger (karl@denninger.net) Web: http://childrens-justice.org Isn't it time we started putting KIDS first? See the above URL for a plan to do exactly that! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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