Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uunet!van-bc!
From: lphillips@lpami.wimsey.bc.ca (Larry Phillips)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Hard Drive/Controller
Message-ID: <836@lpami.wimsey.bc.ca>
Date: 27 Nov 89 20:59:06 GMT
Lines: 29
Return-Path: <lpami!lphillips>
To: van-bc!rnews

In <24531@cup.portal.com>, FelineGrace@cup.portal.com (Dana B Bourgeois) writes:
>I know it probably isn't a problem now but when will support for more
>than 8 SCSI devices appear?  And do the current products support the
>attach/detach elements that are built into the standard?  SCSI has 
>been around for at least 5 years now and it seems there is only support 
>for a subset of the standard.  What's the reason?

Support for more than 8 devices will never appear in 'SCSI'. Perhaps in some
future standard, perhaps in an extension of SCSI, but not in SCSI itself.

Note that devices are controllers, and you are only allowed 8 of them,
including host adapters in the count. Each controller may have more than one
thing attached to it. For example, an Adaptec 4000 will allow two ST506 drives
to be attached, and you can have 7 Adaptec 4000s on the buf, for a total of 14
drives. This is still, however, 8 devices.. 7 Adaptecs and the host adapter.
Other controllers allow up to 7 LUNs (logical units) to be attached.

We have the support now, in the Amiga, though not on all host adapters.

-larry

--
" All I ask of my body is that it carry around my head."
         - Thomas Alva Edison -
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|   //   Larry Phillips                                                 |
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