Subject: Re: IDE drives in some Ultra machines
To: None <port-sparc64@NetBSD.org>
From: Matthias Scheler <email@example.com>
Date: 07/11/2004 16:26:24
In article <firstname.lastname@example.org>,
Andy Ruhl <email@example.com> writes:
> The reason I ask about changing the boot path is because my old
> SparcStation 1 can take an environment variable in the firmware to
> change the scsi path you want to boot.
That works with the ULTR5 or ULTRA10, too. Just put in a PCI SCSI
hostadapter with a Symbios Logic 53c875 chip on it, connect a SCSI
disk and it will boot of it. I've once heard a story about somebody
connecting the internal IDE disk of an ULTRA10 to such a using
hostadapter a SCSI IDE converter which boosted the disk performance
and reduced the CPU load.
> I was hoping there was some provision to do this with an IDE card but
> oh well...
You probably could if it had a chip that the OFW would support. But you
wouldn't want another crappy CMD 646.
Matthias Scheler http://scheler.de/~matthias/