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- Path: sparky!uunet!lhdsy1!usho93!usho52.hou281.chevron.com!hhtne
- From: hhtne@usho52.hou281.chevron.com (H.T.Nettles)
- Newsgroups: comp.sys.ibm.pc.hardware
- Subject: Re: IDE HD and MFM (XT) HD in the same AT ?
- Message-ID: <1992Aug24.041144.24844@usho93.hou281.chevron.com>
- Date: 24 Aug 92 04:11:44 GMT
- References: <jmh.714382322@tko.vtt.fi> <1992Aug21.235526.18472@news.clarkson.edu>
- Sender: news@usho93.hou281.chevron.com (USENET News System)
- Organization: Chevron
- Lines: 62
-
- In article <1992Aug21.235526.18472@news.clarkson.edu> faruque@sun.soe.clarkson.edu (Abdullah Faruque,334CH,3752,2654247) writes:
- >From article <jmh.714382322@tko.vtt.fi>, by jmh@tko.vtt.fi (Michael Hasemann):
- >> Hi Netters,
- >> I would like to use an IDE HD and a XT HD in the same AT.
- >>
- >> Is that possible ?
- >> Any hints appreciated.
- >>
- >> Regards Michael
- >
- >Yes, it is possible to run both IDE and MFM/RLL drives together.
- >Currently I am using a 80 meg IDE (Maxtor 7080A) and a 65 meg RLL
- >(Seagate ST277R-1) drive together in a 386 machine. I have seen this
- >question several times, so I compiled the following summary about this
- >matter. There are three ways it can be done:
- >
- >1. You need the right MFM/RLL controller card which can be set at the
- >secondary hard drive port address with the onboard BIOS enable. Also
- >the onboard BIOS must support hard drive at the secondary port
- >address. The only 16-bit MFM/RLL card (as far as I found) that
- >fulfills those requirements is the Seagate ST21/22M (MFM model) or
- >ST21/22R (RLL model). Although most other RLL cards (I have tried
- >
- ... stuff deleted ....
- >2. The second method is to use an IDE host adaptor card that can
- >co-exist with other MFM/RLL controllers. I have seen these kind of
- >product advertised in Computer shopper, they are expensive too. I
- >never used one, so I can not tell much about it. If somebody has any
- >experience, then I would like to hear about it.
- >
- >3. The third method is to use a 8-bit XT type MFM/RLL controller card.
- >Some of these type of cards (not all of them) can be configured as
- >secondary controller and can co-exist with other types of primary
- >controller cards. I will not recommend this method, because you will
- >get poor performance with an 8-bit card in an AT type machine.
- >
- >I would like to here if there is any other possible ways of doing this.
- >
- I recently downloaded 3drvs110.zip from a local bulletin board.
- This is a MS-DOS device driver which will allow you to add an
- IDE controller behind an existing MFM/RLL controller on a 286
- or 386 system. Their example on how to do this uses a Seagate
- ST-07 IDE controller. I have not (as yet) tried this product,
- but their address is:
-
- PC+ Company
- 9606 N.E. 4th Street
- Midwest City, OK. 73130
-
- Their product is shareware, and they charge $20 to register
- the 3 drive version. The 4 drive version is not shareware,
- and costs $30.
-
- I am in no way associated with this company or their products
- (standard disclaimer).
-
-
- --
- | Henry T. Nettles Mail: hhtne@hou281.chevron.com |
- | Seismic Technology Division |
- | Chevron Petroleum Technology Co. Tel: (713) 596-2453 |
- | Houston, Texas 77242-2832 Fax: (713) 596-3041 |
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