So based on my observations, the:
Sonnet Crescendo PCI G4/800/1M
is not compatible with
Seagate Barracuda ST318416N 18G SCSI Hard Disk Drive (at least when loaded with Jaguar).
The incompatibility is only seen when trying to boot from the Barracuda. The Sonnet card is quite happy when booting from another HDD (running OS 9) with the Barracuda present. Equally, the Barracuda will boot when using another Sonnet card (such as G3/400/1M or G4/405/1M). But try to boot OS X from the Barracuda with the G4/800 in the slot and the disk hangs before bringing up raster. This is true for both methods of boot available to me: Ryan's XPF and Sonnet's own PCI X Installer utility. (This is not an obvious cache config problem, since I am running these tests without backside cache activated.) However, I've only tested with OS X Jaguar, not Puma.
My surmise:
The problem lies in the firmware of the Sonnet G4/800 card.
My recommendations:
1. Do not try to use these two products (Sonnet Crescendo PCI G4/800/1M; Seagate Barracuda ST318416N) together under OS X.
2. Do not try to use the Sonnet Crescendo PCI G4/800 card in a production system until you have assured its compatibility with any SCSI devices you are using.
Gerald W Wilson
gww wrote:
So I've got an apparent incompatibility between:
a. My Tsunami Mobo
b. Jaguar
c. Sonnet's G4/800 PCI card
d. The particular SCSI HDD I'm using.
If I change either b or c I have no problem. Now I'm trying to find out whether changing a or d will cure it too. Right now, I'm suspecting the firmware of the Sonnet 800 card as being the guilty component.
According to the ReadMe for PowerLogix Cache Control v 1.2, it isn't compatible with the later G4 cpus which use L3 cache, so I don't know which version you are using.
Ah, yes I do. I see that there's a new version called 2.1, which can deal with L3 caches. Beta. Very Beta. Okay, I think I'll pass on that today.
I'll post if I get a more definite diagnosis.
GWW
Will S wrote:
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