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Article #9096Right Story, Wrong Conclusion (was Re: MFM as an RLL drive?)
From: Keith Ericson
Date: Mon, 22 Jan 1990 22:27
Date: Mon, 22 Jan 1990 22:27
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1686 bytes
In article <90011904272373@masnet.uucp> jf.messier@canremote.uucp (JF MESSIER) writes:
]>> Is it possible to use a MFM hard disk drive with an RLL
]>> controller?
]>The basic problem is that the coating on the disk is not designed to
]>handle the density of data used by the RLL format, and it WILL
]>'forget' what you have stored there.
]
] I had a really bad experience with such controllers. At Revenue
]Canada, we have a lot of Epson Equiti I+, each with a 30M hard disk
](in fact, a 20M and a RLL controller). BUT, the drives used were
]Miniscribe, NOT APPROVED for RLL, so MFM-ONLY.
^^^^^^^^^^
]...
]When Epson came to change the HD, they brought ST-236,
^^^^^^
]which are RLL-approved, but they had to try 16 of these to find 5 that
]worked in the computers. They had to come 4 times and they wasted a lot
]of time in testing those drives. Even after all drives were installed,
]we had other bad sectors appearing on the disks....
]
] STAY AWAY FROM RLL, PLEASE......... !!!!
This should be:
Stay away from Miniscribe.
Stay away from Seagate.
kEITHe
Technical Details
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arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!samsung!think!bbn!mit-eddie!uw-beaver!zephyr.ens.tek.com!tekcrl!tekgvs!keitheReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!samsung!think!bbn!mit-eddie!uw-beaver!zephyr.ens.tek.com!tekcrl!tekgvs!keithe From: keithe@tekgvs.LABS.TEK.COM (Keith Ericson) Newsgroups: comp.sys.ibm.pc Subject: Right Story, Wrong Conclusion (was Re: MFM as an RLL drive?) Message-ID: <6726@tekgvs.LABS.TEK.COM> Date: 22 Jan 90 22:27:55 GMT References: <90011904272373@masnet.uucp> Reply-To: keithe@tekgvs.LABS.TEK.COM (Keith Ericson) Organization: Tektronix, Inc., Beaverton, OR. Lines: 30