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- Path: fc.hp.com!tomk
- From: tomk@fc.hp.com (Tom Kennedy)
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: ZIP vs SyQuest
- Date: 18 Jan 1996 19:44:03 GMT
- Organization: Hewlett-Packard Fort Collins Site
- Message-ID: <4dm7u3$kva@fcnews.fc.hp.com>
- References: <4bq8mg$gp2@guava.epix.net> <1903.6588T778T2112@xmission.com> <4dggrf$8c6@Starbase.NeoSoft.COM> <4dhh08$5k4@fcnews.fc.hp.com> <4djsia$778@Starbase.NeoSoft.COM>
- NNTP-Posting-Host: magnum.fc.hp.com
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-
- Peter da Silva (peter@Starbase.NeoSoft.COM) wrote:
- : In article <4dhh08$5k4@fcnews.fc.hp.com>, Tom Kennedy <tomk@fc.hp.com> wrote:
- : >Again, how so? What does this have to do with the Zip drive being set
- : >to SCSI ID 5 or 6?
-
- : Most PC SCSI cards map SCSI ID 0 to C: and SCSI ID 1 to D:, and won't boot
- : off any other ID.
-
- OK... as long as we're agreed that it doesn't affect Amiga booting.
-
- : >Unless you want to have three Zip drives, this is completely
- : >irrelevant. (Or more correctly, unless you have more then two SCSI
- : >devices that can only be set to ID 5 or 6.)
-
- : Like this QIC tape drive I have here? I hate systems and devices that reserve
- : specific target addresses (System V release 4 wants disks on 0-4 and tapes
- : on 5 and 6, for example, another case where Zip is toast).
-
- I agree -- systems that reserve specific SCSI IDs are rather lame...
- As far as drives go, I don't care are long as only a few drives on one
- SCSI bus have the limitation.
-
- Using removable media hard drives on unix is a bit difficult
- anyway... most unixes only support removable media as a backup device
- (your Zip/EZ becomes a somewhat random access tape drive).
-
- : Let's put it this way... there's no technical reason to limit the Zip to
- : address 5 or 6. So why did they? What other shortcuts did they make?
-
- Well, there's not a lot of room on the back of the Zip drive... They
- could have put in one of those rotating switches, but that would cost
- more. The cheapest way to allow all 8 ID's (within the space
- constraints) would be to use DIP switches. I'd bet they decided the
- one big switch was "easier" to use (for computer illiterate customers
- -- like peecee owners :) then DIP switches.
-
- Given the limits/characteristics of the operating systems the drive is
- targeted for, the ID choice is fine for nearly all users. (Mac and
- Amiga don't care, unix and windows have poor removable media support,
- and most peecee owners have much bigger fixed disk hard drives for
- booting.)
-
-
- All that said, if you don't care what SCSI ID one of your drives is
- (like >99% of Amiga owners), then it doesn't matter. If you need to
- be able to set the ID to anywhere from 0-7, then don't buy a Zip drive :)
-
- Tom Kennedy
-