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- From: mcbryde@navier.math.uh.edu (Jack Mcbryde)
- Newsgroups: comp.unix.aix
- Subject: Re: Looking for suggestions for Tape Backup?
- Date: 31 Dec 1992 14:36:14 GMT
- Organization: UH Dept of Math
- Lines: 59
- Message-ID: <1hv0guINNsi2@menudo.uh.edu>
- References: <1254@alsys1.aecom.yu.edu> <C04KHx.9A6@ucunix.san.uc.edu>
- NNTP-Posting-Host: navier.math.uh.edu
-
- In article <C04KHx.9A6@ucunix.san.uc.edu> ewilson@ucunix.san.uc.edu (Eliot Wilson) writes:
- >In article <1254@alsys1.aecom.yu.edu> ed@balrog.aecom.yu.edu (Ed Geraghty) writes:
- >>
- >>Happy New Year!!!!! (almost :) )
- >> By the time this gets to some it will be a new year
- >>
- >>Greetings All,
- >>
- >> We are currently looking to purchase a 8mm backup tape drive for our site.
- >>I was perusing through the AIX FAQ for possible suggestions and saw that
- >>only IBM's tape drive will work. We are looking to backup about 1.5 Gig on
- >>Suns and Rs6k. I have to check but I could have sworn that I saw a 8mm
- >>advertised for IBM and SUNs is the FAQ correct? Anybody have any suggestions
- >>or warnings i should know being in the market for 8mm drives.
- >>
- >> Thanx in advance,
- >>
- >If your not set on getting an 8mm, IBM sells a 1/4" tape drive which
- >uses QIC-1000 tapes, and can store upto 1.2MB per cartridge. It has a
- >300KB/sec data transfer rate, which is 50% faster than the previous 1/4"
- >tape drive. When it was announced 9/22/92, it's list was about $2800.
- >Here is some info I found:
-
- If you do much in the way of backups and storage I think you will be better
- off with the 8mm. You'll be able to backup your entire system (even if you
- make it noticibly larger) without having to change the tape, the media cost
- is significantly less (3rd party anyway), and you don't have to deal with
- waiting for the tape to retension each time (a problem with the 525Mb version
- which probably hasn't been remedied for this one, although it might have been).
- I'll try augmenting the table from memory. (This means the numbers might be
- off.)
-
- > 7207-012 525Mb 8mm
- > --------
- >Announced 9/22/92
- >Capacity (MB) 1.2 525Mb 2.3Gb
- >Transfer rate (KB/sec) 300 240 240
- >ECC (Error Correction Code) Yes yes yes
- >Downward compatibility Yes yes n/a
- >US Price $2800 ? 5600
- >Price/MB $2.33 ? about the same
- >Media (tape cartridge) IBM 1.2 Sony data grade (or other)
- >Media price (US) $67.95 $35? $16
- >Media price/MB $0.06 $0.0067
-
- There is also a higher capacity 8mm available and a 4mm DAT. If you consider
- the savings in time (not having to wait for retensioning and not having to
- wait to stick in the second tape) and the media costs ($50 per tape although
- I suspect that you can get it to be less by finding third party tapes) I think
- you would be happier with the 8mm. I'd borrow one from IBM for a day to make
- absolutely sure that it didn't give me any problems on the Suns. (I don't see
- why it would, but it never hurts to make sure.)
-
- jack
- --
- jack mcbryde@karazm.math.uh.edu * All I ask of Thee, Lord
- * Christ died for our sins. Dare we * Is to be a drinker and fornicator
- * make his martyrdom meaningless by * An unbeliever and a sodomite
- * not committing them? - Jules Feiffer * And then to die. - Claude de Chauvigny
-