Article View: comp.periphs
Article #351Re: Cartridge tape questions
From: Witold Paluszynski
Date: Sun, 29 Oct 1989 22:56
Date: Sun, 29 Oct 1989 22:56
25 lines
1853 bytes
1853 bytes
In article <169@iquery.UUCP> matt@iquery.UUCP (Matt Reedy) writes: >I'm confused about quarter-inch cartridge tape drives. I read that there are >40MB, 60MB, 120MB, & 150MB tape drives. I read about "standards" like QIC-24 > ... >My real reason for asking is that we want to get a quarter-inch tape drive for >a 386 *NIX machine that is as portable as possible (i.e., we'd like to be able >to make tapes on this machine that can be read on the widest possible variety >of other *NIX machines). Well, there appears to be lots of QIC standards but the answer to this question is simple: they are generally INCOMPATIBLE. I was recently shopping for a quarter inch drive with similar objectives (compatibility with other systems) and I was amazed to discover that 60 MB drives were incompatible with 150 MB drives. Yes, you can read a 60 MB tape in a 150 MB drive, but you can't write it. What I would expect is the sort of upwards compatibility as with 9 track tapes, where even the newest drives can write 800 bpi tapes. I guess the manufacturers have discovered that with that much compatibility people just keep using their old drives instead of replacing them with new ones all the time. So they were careful to prevent this kind of disaster by designing incompatible standards. I hope someone can prove me wrong. Witold
Technical Details
Message-ID:
<9633@june.cs.washington.edu>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!uw-beaver!uw-june!witoldReferences:
<169@iquery.UUCP>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!uw-beaver!uw-june!witold From: witold@cs.washington.edu (Witold Paluszynski) Newsgroups: comp.periphs,comp.unix.questions Subject: Re: Cartridge tape questions Message-ID: <9633@june.cs.washington.edu> Date: 29 Oct 89 22:56:13 GMT References: <169@iquery.UUCP> Reply-To: witold@june.cs.washington.edu (Witold Paluszynski) Organization: University of Washington, Computer Science, Seattle Lines: 25 Keywords: QIC tape cartridge