Linked by Thom Holwerda on Thu 29th Nov 2007 21:22 UTC
Sun Solaris, OpenSolaris IBM and Sun Microsystems are in the final stages of an 18-month-long project to adapt the OpenSolaris operating system to run optimally on Big Blue's z System mainframes. David Boyes, president and chief technology officer of Sine Nomine Associates, a consultancy that handled most of the integration and migration duties, told eWEEK at the Gartner Data Center Conference 2007 that the new IBM-tuned version of OpenSolaris will be ready soon. He declined to be more specific.
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RE[5]: Woe is AIX
by foobar on Sat 1st Dec 2007 02:09 UTC in reply to "RE[4]: Woe is AIX"
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"No, eclipz unites I, P, and Z. Hence the last three letters of the name. The POWER6-based processor for Z will be the last to come to market, but it will come."

Yeah, the one of the goals of eclipz was to unite, but it wasn't very successful with the processors. The poster that I replied was hinting that AIX would soon run on mainframe hardware because the processors are the same. This rumor is not true, and was started by some tech journalist who wrote a story claiming that we were going to emulate the z architecture on power. That idea was entertained at one point, but the performance was terrible, and it was dropped.

Here are some differences:
- cache hierarchy
- cache coherency
- page tables/supported page sizes
- pipeline
- packaging/pin layout/cores per chip

Here are some things that were common before:
- elastic interface
- gx bus

Here are some of the newly common things:
- nova memory controllers
- some high frequency circuits
- in order instruction processing
- binary and decimal floating point

Here are some things that p6 got from the mainframe world:
- r unit
- storage keys

None of the commonalities are going help anyone boot AIX on the mainframe. I think the z6 has much more in common with the bluefire z9 processor than p6.

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