home *** CD-ROM | disk | FTP | other *** search
- From: Tom.Langseth@f421.n109.z1.fidonet.org (Tom Langseth)
- Sender: Uucp@blkcat.UUCP
- Path: sparky!uunet!blkcat!Uucp
- Newsgroups: comp.sys.mac.hardware
- Subject: Re: ESDI => SCSI ADAPTER
- Message-ID: <725294819.AA00000@blkcat.UUCP>
- Date: Thu, 24 Dec 1992 11:08:00 -0500
- Lines: 36
-
- > I am looking for a little help with a kind of strange situation. I have
- > a 170MB external hard disk that is ESDI. The person I got it from said
- > it was out of an older Sun Workstation. In the system I purchased from
- > him, he said that he had formatted the drive to work with the Macintosh.
- > He sent the drive and an adapter. I connected everything but the SCSI
- > bus keeps getting locked up (no drives are seen). As soon as I
- > disconnect
- > the adapter everything is fine.
-
- Step #1 - Contact the guy you bought it from and find out how he
- did it.
-
- Step #2 - (If Step #1 fails), let us know the brand and model # of
- the ESDI hard drive and adapter so we can better help you.
-
- I have matched sets of Hitachi ESDI drives w/SCSI adapters that
- work beautifully, so long as you don't touch a single jumper -
- But in that case, the ESDI drive must be set as Drive 0 and ESDI
- terminating resistor must be in place. On the SCSI adapter card,
- the address can be anything that doesn't conflict with the SCSI
- bus; and the adapter's terminators must also be in place. These
- are 5 1/4 FH+ drives, so they must be in external cases and they
- must also be externally terminated if the last device in the
- string.
-
- Also, if you are expecting Apple's HD SC Setup to see the drive -
- that won't happen. Since the drive does not have the Apple ROM, it
- will have to be formatted and initialized by third party software,
- such as Disk Manager, MacinStor, etc. After that process, you
- revert to the Apple Installer and continue on as per usual.
-
- Hope this helps a bit.
-
- On the other hand, I have OMTI adapters that are not so
- persnickety.
-
-