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When you start looking at more specialized chips - like Fibre Channel chipsets for their Sparc line (endian difference) - the market often gets more rarified."
Most Sun servers use PCI or PCI Express for I/O. PCI is little endian. Devices don't get specially made for endian differences on Sun boxes. The Sun I/O controller that bridges the CPU bus to the PCI bus does the conversion. So there are no special chips that 3rd parties make for Sun.
I don't think most of the low-end (High volume) Sun systems use fibre channel controllers on board. The current generation uses SAS/SATA controllers. So the same market that caters to Dell, HP and Apple also caters to Sun's I/O device needs.
" And in some cases, the chip sets are customizations of their existing chips, so they are semi-custom or at least not-standard.
Unless you have hard data to prove this, that is not the case.
"Let me rephrase myself. When Sun is choosing a vendor for chips, it should given preference to vendors that will open-source drivers. Thereby encouraging vendors to open-source their drivers."
That can't be the primary motivation in choosing a technology. Sun usually uses it's own drivers for Solaris. There are very few binary only Solaris drivers for SPARC. The same reason for why Sun doesn't have the Market clout to dictate terms also ensures that 3rd party vendors don't write Solaris SPARC drivers.
Edited 2007-06-19 23:02




Member since:
2006-08-26
It depends on the market. For SATA adapters - that's true. They sell many more to DELL and HP than they do to Sun (or Apple that only pushes about 1.5 million boxes a quarter). When you start looking at more specialized chips - like Fibre Channel chipsets for their Sparc line (endian difference) - the market often gets more rarified. And in some cases, the chip sets are customizations of their existing chips, so they are semi-custom or at least not-standard.
Let me rephrase myself. When Sun is choosing a vendor for chips, it should given preference to vendors that will open-source drivers. Thereby encouraging vendors to open-source their drivers.