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- Newsgroups: comp.sys.apollo
- Path: sparky!uunet!nih-csl.dcrt.nih.gov!helix.nih.gov!rvenable
- From: rvenable@helix.nih.gov (Richard M. Venable)
- Subject: Re: backup tape
- Message-ID: <1992Nov21.044105.1992@alw.nih.gov>
- Keywords: tape
- Sender: postman@alw.nih.gov (AMDS Postmaster)
- Organization: National Institutes of Health, Bethesda
- References: <1992Nov21.012114.5623@utagraph.uta.edu>
- Date: Sat, 21 Nov 1992 04:41:05 GMT
- Lines: 25
-
- In article <1992Nov21.012114.5623@utagraph.uta.edu> root@mecad.uta.edu (Operator) writes:
- >
- >What is the largest size of back-up tape in terms of megabyte that Apollo DN
- >3500, 4000 and 5500 can take?
-
- If you mean tapes for the built-in 1/4 in. cartridge, DC600 tapes hold 60 Mb
- in 'wbak' format, DC300XL tapes hold 45 Mb, and DC300 hold 30 Mb. The
- designations are from 3M, but are usually cross-referenced in most catalogs.
-
- If you are refering to external drive capacity, Workstation Solutions makes a
- DNxxxx compatible (tar, rbak, wbak, & enhancements) drive for 8 mm tapes that
- holds 5 Gigabytes (5000 Mb). The 8 mm tapes are identical to those used for
- video, but meet higher specifications for data storage. The drive costs over
- $5000, but less than $10,000; the 4000 will probably need an AT bus SCSI board,
- the 5500 may be able to use it's own internal SCSI, I'm not sure about 3500.
- Other companies may also provide 8 mm and the new 4 mm (or DAT) with lower
- capacities like 1 or 2 Gigabytes, depending on tape length; WS makes a 2.2 Gb
- drive as well.
-
- -----------------------------------------------------------------
- Rick Venable | "Eschew
- FDA/CBER Biophysics Lab | Obfuscation"
- rvenable@helix.nih.gov | -- the Phantom Nerd
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