Re: p570 LPARs and PCI Slot Assignments
From: JOSEPH KREMBLAS (JKREMBLAS_at_REDHEARTGIFTS.COM)
Date: 12/29/04
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Date: Wed, 29 Dec 2004 11:34:04 -0700 To: aix-l@Princeton.EDU
There are, indeed, PCI-X limitations . . . in case there is any doubt
amongst . . .. Refer to the P670 planning guide for more details.
--joseph
-----Original Message-----
From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On Behalf Of
Raj Atwal
Sent: Wednesday, December 29, 2004 8:48 AM
To: aix-l@Princeton.EDU
Subject: p570 LPARs and PCI Slot Assignments
Hi all,
I have two p570s made up of 3 system drawers and 2 D20s I/O drawers
each. I am still awaiting delivery of these servers but I have began the
planning of the installs. I will be configuring multiple LPARs.
A senior consultant at my company has told me that there are special
rules on p570 regarding PCI Adapter assignments to LPARs. I have looked
at the p570 Technical Guide and many of the p5 redbooks and I cannot
find any special rules for the p570 compared to other Regatta systems.
I have calculated a total of 32 PCI slot per p570. We do not have the
additinal RIO card, and therefore slot 6 is open on the system drawers.
I calculate 6 PCI slots per system drawer (6*3 =18) and 7 PCI slots per
D20 (7*2 =14), for a total of 32 (18 + 14 =32) . Do you concur?
Secon question and more importantly, I believe I could carve a single
LPAR and assign one PCI slot to that single LPAR from each of the system
drawers and each of the D20s (total of 5 PCI-X slots) without
restriction. But this other guy is making me second guess myself. Is
what I am saying correct or are there indeed PCI-X assignment
limitations when using multiple system drawers and a couple of D20s?
I look forward to any opinions and experiences. TIA
______________________________
Raj Atwal
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