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тАО06-30-2008 12:58 PM
тАО06-30-2008 12:58 PM
Rx 8640 Npar
rx8640,4 cell with 2 IO chasis is connected to cell 0 and cell 1.we have a npar with cell 0 and cell 1.
SO i have a dought at that in future, if cell 1 is going down, then we ther I will be able to use the IO chasis which is connected to cell 1 .
And also pls let me know the failure within the cell.which will affect the npar .
Thanks in advance.
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тАО07-01-2008 04:22 AM
тАО07-01-2008 04:22 AM
Re: Rx 8640 Npar
As for your second question, providing a list of failures in a cell which will affect the npar is not viable.
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тАО07-01-2008 02:44 PM
тАО07-01-2008 02:44 PM
Re: Rx 8640 Npar
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тАО07-01-2008 02:47 PM
тАО07-01-2008 02:47 PM
Re: Rx 8640 Npar
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тАО07-02-2008 06:32 PM
тАО07-02-2008 06:32 PM
Re: Rx 8640 Npar
If you have problem with cellboard and you have unassigned cellboard, then yes, you can replace it, to make it even safer, use the same firmware for every cell that you have in a complex
Regards,
Sandy
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тАО07-02-2008 09:38 PM
тАО07-02-2008 09:38 PM
Re: Rx 8640 Npar
hp-ux 11.31 does even support online cell replacements. But in general, a serious hardware problem will affect the npar.
Hope this helps!
Regards
Torsten.
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тАО07-03-2008 03:08 PM
тАО07-03-2008 03:08 PM
Re: Rx 8640 Npar
Will u pls tell me some situations in 8640 for an LPMC and HPMCs.that was I really looking for.
And can u also tell me the HP_UX versions capability to withstand the hard ware faults.Like v3 only uses boot processor for processing interupts so if a dynamic procssor is going bad wether it will cause any LPMC or HPMC in V3.
I will b thank full
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тАО07-03-2008 06:32 PM
тАО07-03-2008 06:32 PM
Re: Rx 8640 Npar
Have you heard about Single bit errors (SBE) on memory or I-cache/D-cache parity errors on CPU.. These falls under LPMC, but remember multiple LPMCs can cause an HPMC as well...
Dynamic CPU.. I don't think its a term related to NPAR.. It is used in vpars and even there if it fails vpar will panic for sure.
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тАО07-17-2008 01:38 AM
тАО07-17-2008 01:38 AM
Re: Rx 8640 Npar
it's usually a bad design to add cell 0 and cell 1 to an npar, cuz this way u'll never be able to create another npar unless u have an IO expansion and in your case you don't.
So it's better to have an npar with cell0 and cell2 and another with cell1 and cell4
always put in mind that a cell and it's IO chassis is a one to one relationship. It can not be shared with other cells. you lose the cell you lose the IO chassis.
regarding to the HPMC as everyone mentioned that if a cell is to HPMC say for a processor error the whole partition reboots, very logical i think.
regarding the dynamic partitioning, i advise you to read the white paper on dynamic partitions which is supported on HPUX 11i v3
one last thing put in mind that if a cell fails you will have to take the npartition down as issue "PE off" from the MP and replace the cell then boot it up. unless you are working with dynamic partitioning and that's a different issue of course.
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тАО07-17-2008 06:17 AM
тАО07-17-2008 06:17 AM
Re: Rx 8640 Npar
pls reply , thanks in advance