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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!spool.mu.edu!newspump.sol.net!www.nntp.primenet.com!nntp.primenet.com!rtd.com!dgy From: dgy@rtd.com (Don Yuniskis) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: whats a good external SCSI tape? Date: 8 Nov 1996 01:13:35 GMT Organization: CICDO Lines: 34 Message-ID: <55u1fv$cgg@baygull.rtd.com> References: <DzHp5B.6Bt.G.nanguo@nanguo.chalmers.com.au> <BZOzHFO.smartsignal@delphi.com> <55lovg$hs0@baygull.rtd.com> <55mshd$5oi@newsbr.eunet.fr> NNTP-Posting-Host: seagull.rtd.com In article <55mshd$5oi@newsbr.eunet.fr>, Frederic MARAND <Frederic.Marand@osinet.fr> wrote: >dgy@rtd.com (Don Yuniskis) wrote: > >>> Maybe it just sounds >>>scary! Wonder how nervous the anecdote driven would get if they really >>>knew how DRAM worked? Imagine all those precious bit patterns nestled >>>in a matrix of myriads of tiny capacitors - Egads! You mean my data has >>>a time constant! If some thing called refresh doesn't happen my bits do >>>what??? Pass transistors? Huh? Oh well, back to work. >See, the DLT cartridge is scary, rather more thand its drive mechanics >: the tape can go out ! We had some questions about this aspect from >our first DLT customers, who were afraid the tape would unroll and the >end of the tape be damaged. I think the biggest DLT problems are (in no particular order): - folks dropping cartridges - the tape "leader" (extractor?) breaking >By the way, would anyone know why a DLT is much slower than a DAT >using TAPEDAI.NLM on a NetWare 4.10 server ? It speeds properly with >Seagate's Storage Manager driver, but only gives about 100 kB/s with >the NetWare driver ! > >I know this is not a Netware forum, but I found none, and Novell's >only answer is: this is an unsupported drive and it does not emulate a >standard SCSI tape very successfully. How is it supported on FreeBSD ? >Any specific changes to the standard SCSI tape driver ? If this is a significant issue/problem for you, perhaps try loading a different set of DLT firmware -- one of the variants that more closely resembles a DAT, etc. (?) --don