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- Newsgroups: comp.sys.next.hardware
- Path: sparky!uunet!haven.umd.edu!darwin.sura.net!convex!news.oc.com!spssig.spss.com!uchinews!news
- From: lars@boznag.uchicago.edu (Lawrence Miller)
- Subject: Re: 8mm vs. 4mm (DAT)
- Message-ID: <1992Sep15.221127.4986@midway.uchicago.edu>
- Sender: news@uchinews.uchicago.edu (News System)
- Reply-To: lars@boznag.uchicago.edu
- Organization: University of Chicago Computing Organizations
- References: <1992Sep15.181239.740@strangeways.unh.edu>
- Date: Tue, 15 Sep 1992 22:11:27 GMT
- Lines: 28
-
- In article <1992Sep15.181239.740@strangeways.unh.edu>
- tjb@strangeways.unh.edu (Thomas J. Baker) writes:
- > Anyone with any experiences in this area? I have the opportunity to
- either
- > buy a used 2 year old Exabyte 8200 8mm or to wait a few more months and
- buy
- > a new 4mm DAT for the same ~$1000 price. I've compared them (I had both
- > the Exabyte in question and a DEC TLZ04 bolted to my color turbo) and
- they
- > are pretty similiar in performance. The Exabyte was about 10 minutes
- quicker
- > in backing up about 700MB but there are more DAT drives on campus than
- 8mm.
-
- I work on an experiment that uses both 8mm and (starting recently)
- 4mm tape drives on SGI machines. The 8mm drives tend to be slightly
- faster than the 4mm drives. However, they are less reliable, and
- are slower at loading tapes than the 4mm drives (at least, the ones
- we use). Also, we have been able to more reliably use the entire
- capacity of the 4mm tapes (often the 8mm tapes run out before 2GB. You
- may not run into this problem if you are just doing backups).
- [btw, we use archive python 4mm drives, not DEC's]
-
- Overall, I'd say that the 4mm drive is superior.
-
- Lawrence Miller
- High Energy Physics
- The University of Chicago
-