Izaak Bozof (izaak_bozof@ins.com)
Wed, 30 Dec 1998 12:08:35 -0500
PS.
The 'problem' is just a fact of life for EISA devices. The hardware is not
self-enumerating, like PCI or PNP ISA. The driver has to specifically look
for the device on the bus. The way that the Linux drivers have been
written (it seems) for the EISA devices is that they stop on the first
device they find.
PCI drivers don't do this because the driver simply queries the PCI
controller which 'tells' all the PCI devices to enumerate, then the driver
is supplied with all the available devices, so to speak.
izaak
At 11:40 AM 12/30/98 -0500, you wrote:
>Yes, the Jensen is EISA based... When I boot linux, it finds the first
>controller (scsi0), and the 3 hard drives connected to it! There is no
>mention of a second controller in Linux. It is like I don't have the second
>controller installed. The machine originally had NT on it and the drives
>were mirrored, i.e. the drives on the second controller had the same IDs as
>the ones on the first. Could that be causing a problem, even so, why
>doesn't the second controller even show up??
>
>-----Original Message-----
>From: Chris Price <cprice@missing.its.to>
>To: axp-list@redhat.com <axp-list@redhat.com>
>Date: Wednesday, December 30, 1998 10:07 AM
>Subject: Re: 2 SCSI Controllers
>
>
>>
>> Hmm, maybe this is an EISA specific issue *the Jensen is an EISA
>>bus machine, correct?), as my XL300 (and several Intel machines i have
>>configged) recognise two controllers at boot time with no tweaking
>>whatsoever (2 adaptecs, an adaptec and a ncr, an ncr and a qlogic, etc..
>>various combos).
>>
>
>
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>
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Izaak Bozof International Network Services
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perhaps relatedly, more prison inmates than students) cannot
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