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04-21-2004 04:54 PM
04-21-2004 04:54 PM
For rp74xx or rp84xx, there are only 4 internal disks. If several vPar (let's say 8) are required to configured, how can the internal disks be distributed to each vPar? Where is each OS of vPar be installed?
Solved! Go to Solution.
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04-21-2004 08:44 PM
04-21-2004 08:44 PM
SolutionIf you want to run 8 vpars, you have to buy at least 6 separate bootdisks on 6 separate SCSI cards (double port cards will not help, because then the busses are on one PCI bus). However you could use lan/scsi combo cards to save some I/O slots (you have 14 in your machines).
I hope this helps
Stefan
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04-26-2004 10:06 AM
04-26-2004 10:06 AM
Re: Internal disks for vPar
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04-26-2004 02:36 PM
04-26-2004 02:36 PM
Re: Internal disks for vPar
But I suspect that there should be some hardware connection (e.g. backplane or main controller,..) between 2 cell boards. That means there may be single point of failure that cause 2 separate nPar down. is it correct?
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04-27-2004 09:05 AM
04-27-2004 09:05 AM
Re: Internal disks for vPar
In it it says the rp7410 has, "protection against hardware errors in the same nodeâ most hardware errors in the same node will not bring down a peer partition in the same node". Also, "Special programmable hardware in the cells defines the boundaries of a partition in such a way that isolation from the actions of other partitions is enforced."
So there is hardware isolation between cells, but if this isolation hardware failed, one might consider that a SPOF, but it might take a double failure to notice that the hardware isolation wasn't there. Main point is that nPars provides more isolation than vPars but has less flexibility as they are only divide the system at cell boundari