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тАО01-29-2004 08:01 AM
тАО01-29-2004 08:01 AM
thx in advance
Solved! Go to Solution.
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тАО01-29-2004 09:03 AM
тАО01-29-2004 09:03 AM
Re: Superdome memory question
Everything I'm finding still shows 512 MB DIMMS.
Memory maxes are as follows:
16 way => 64 GB
32 way => 128 GB
64 way => 256 GB
And although I'm not positive, I'm fairly sure you can't mix DIMM sizes on cell boards. If you did, you'd have performance loss (non-optimal interleaving) are even have addressing holes.
Rgds,
Jeff
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тАО01-29-2004 05:15 PM
тАО01-29-2004 05:15 PM
Re: Superdome memory question
in fact, the highest density dimm size is 2GB. And You can mix different size of dimm module but must use a set of 4 dimms in PA-RISC superdome.
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тАО01-29-2004 09:45 PM
тАО01-29-2004 09:45 PM
Re: Superdome memory question
Just 512MB dimms are supported for Superdome cells with PA-RISC PA8700 and PA8700+. For new PA-RISC PA8800 cells (Integrity Superdome) 1GB dimms support will be added.
Regards,
Pedro.
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тАО01-30-2004 01:23 AM
тАО01-30-2004 01:23 AM
Re: Superdome memory question
thx
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тАО01-30-2004 01:37 AM
тАО01-30-2004 01:37 AM
Re: Superdome memory question
RP8400 does allow you to mix different dimms sizes (512MB,1GB and 2GB) on the same cell. Of course, they must be installed on quads of the same size.
Besides, for performance reasons (interleaving), it is recommended(not mandatory) to have the same memory configuration on cells belonging to a hard partition.
Regards,
Pedro.
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тАО01-30-2004 02:03 AM
тАО01-30-2004 02:03 AM
Re: Superdome memory question
I was told that you can't mix different memory size in the same cell board. Where can I find some reference material on this.
thx
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тАО01-30-2004 02:27 AM
тАО01-30-2004 02:27 AM
SolutionYou can find these information on this document:
http://www.hp.com/products1/servers/rackoptimized/rp8400/rp8400infolib/rp8400_whitepaper.pdf
On page 10 you will read:
The minimum cell configuration includes two active CPUs and 1 GB of memory per cell board. The maximum configuration includes four active CPUs and 16 GB of memory per cell board. Memory DIMM modules for the rp8400 are sold in sets of four (quads), with DIMM sizes of 256 MB, 512 MB, and 1 GB available. Memory quads of different sizes can be mixed within a chassis and within a cell. However, for optimum memory interleaving and performance, it is recommended that one memory size be selected and distributed evenly across available cells.
Note: actually, 2GB dimms are also supported for rp8400.
Regards,
Pedro.
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тАО01-30-2004 03:08 AM
тАО01-30-2004 03:08 AM
Re: Superdome memory question
I would again echo the earlier post that as of *right now* only 512 MB DIMMS are supported on the 'Domes. And that even though you can mix DIMM types on cell boards, I would definitely NOT recommend it.
There are enough cell boards in 'Domes that it's not difficult to get to the amount you want with 512 MB DIMMS.
Rgds,
Jeff
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тАО01-30-2004 03:21 AM
тАО01-30-2004 03:21 AM