Dual 6500 and UCS

Hi all,
We have recently installed a UCS enviornment with 2 x 6100 units connected to our dual 6509 core. It is set up so that 2 x 10GigE uplinks connect from FAB-A to 6509-1 and 2 x 10GigE connect from FAB-B to 6509-2. Each of the 4 trunks to the 6509 enviorment are configured the same and truck the same 4 VLAN to FAB-A or FAB-B. We have 2 x UCS Chassis, each with 4 half-width servers. Each chassis has an A and B side, with 20GB going to FAB-A and 20GB going FAB-B.
The above UCS enviorment was installed by a 3rd party, while I configured the core-side of the links.
Our server team recently brought up a Windows server and I started seeing mac-flapping on one of our cores, between one of the 10GigE ports connected to FAB-A and the trunk link that exists between our 2 cores.
I'm a bit unsure about how, on the 6509 side, the ports should be configured.. I was told by the 3rd party that there is no 'active/standby' design, all of the trunks to each of the two 6100s are active 'all the time'. Our 6509 aren't running the VSS supervisors, just 'standard' sup720s running HSRP, with a trunk between the two.
I understand that more details is probably required, but I said i'd look into from a networking/core standpoint and the server guy is checking out his end, as as it stands he has the server in question connected to 2 vNICs, one on each of the 6100s, both 'up'.

Correct, Alan. With fabric failover, you can accomplish redundancy with only one vNIC and the server OS does not need to know about or manage anything to do with the failover. Brad has another post that goes into some detail on that.
http://bradhedlund.com/2010/09/23/cisco-ucs-fabric-failover/ With UCS in your environment, you will find his is a very good blog to follow.
You should make the vNIC primary on the fabric that is connected to the core which is the root bridge and has the primary HSRP or VRRP router interface of the VLAN the server is on and enable fabric failover. If the fabric fails and it goes out the other fabric to your other core, it will still be forwarded, but will have to cross the trunk between your cores to be routed. Making sure that the primary fabric for any given vNIC matches the primary router & root bridge for the access VLAN assigned to it will minimize the traffic crossing the trunk between your cores.
There are other redundancy options beside fabric failover which can work better with VSS or in situations where you have equipment capable of virtual port channels. Likely your server team had the server configured to spread its traffic between two interfaces, one on each fabric, for load balancing and redundancy. This is not the best scenario for uplinking to your dual non-VSS 6500s.

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connect nxos a
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<>
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(Note to programmers: normally, X errors are reported asynchronously;
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Hello,
I'm also using a g450.
Now I'm trying for 5 days to get it work with xinerama under Xorg and/or
Xsun.
Can anybody tell me how to get it work ?
I would like to see a working xorg.conf.
(I don't know how to configure 2 screens for Xsun. Mybe someone can give my his configuration file(s) ?)
Thanks to all who will help me !!!
p.s. here is my latest attempt of xorg.conf which does not provide xinerama for me:
Section "ServerLayout"
Identifier "Multihead layout"
Screen 0 "Screen 0" 0 0
Screen 1 "Screen 1" Rightof "Screen 0"
InputDevice "Mouse1" "CorePointer"
InputDevice "Keyboard1" "CoreKeyboard"
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# Option "Clone" "off"
EndSection
Section "Module"
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SubSection "extmod"
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EndSubSection
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Load "type1"
Load "Xst"
Load "IA"
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FontPath "/usr/X11/lib/X11/fonts/Type1/"
FontPath "/usr/X11/lib/X11/fonts/Type1/sun/"
FontPath "/usr/X11/lib/X11/fonts/F3bitmaps/"
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FontPath "/usr/X11/lib/X11/fonts/100dpi/"
FontPath "/usr/X11/lib/X11/fonts/75dpi/"
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# FontPath "/usr/X11/lib/X11/fonts/freefont/"
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EndSection
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Section "InputDevice"
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Section "InputDevice"
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Identifier "nec"
VendorName "NEC"
ModelName "NEC LCD"
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VertRefresh 50-90
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Section "Monitor"
Identifier "nec2"
VendorName "NEC"
ModelName "NEC LCD"
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tenorsaxman wrote:
Hi. I recently discovered that my family had ilife 05' sitting in a box in the basement. I have a powermac G4 dual 450, and i was wondering how do the programs in ilife 05' run on a dual 450 G4?
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