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тАО06-14-2008 12:55 AM
тАО06-14-2008 12:55 AM
BL45p-G1 with 4p-16GB RAM memory distribution
I have 4 BL45p G1 blade servers with 16GB memory each installed in the following manner: p1-1GB, p2-1GB, p3-6GB, p4-8GB (badly installed...!). Oracle RAC 10g is installed on two servers and application on the two servers.
Windows 2003-sp1 installed on all servers.
1-Does anyone has an idea about the memory use if are installed in this way?
2-Should every processor has the same memory amount installed for it (4GB per processor)?
I am asking due to a memory dump that occurs intermittently on the RAC servers (both of them).
Thanks
Windows 2003-sp1 installed on all servers.
1-Does anyone has an idea about the memory use if are installed in this way?
2-Should every processor has the same memory amount installed for it (4GB per processor)?
I am asking due to a memory dump that occurs intermittently on the RAC servers (both of them).
Thanks
HPE ASE Proliant-Synergy & Storage Certified Engineer
Clustering & Virtualization Support (Microsoft & Vmware)
Clustering & Virtualization Support (Microsoft & Vmware)
3 REPLIES 3
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тАО06-14-2008 06:46 PM
тАО06-14-2008 06:46 PM
Re: BL45p-G1 with 4p-16GB RAM memory distribution
hi
I checked documentation and nothing says that the amount of memory must be the same like you say for instance 4 GB for each processor
http://h18000.www1.hp.com/products/quickspecs/12323_na/12323_na.HTML#Memory
but it says that that DIMMS installed must be identical so I ask you about that p3 = 6GB I don't think there are 3 GB memory modules....?
can you check that configuration for P3
regards
I checked documentation and nothing says that the amount of memory must be the same like you say for instance 4 GB for each processor
http://h18000.www1.hp.com/products/quickspecs/12323_na/12323_na.HTML#Memory
but it says that that DIMMS installed must be identical so I ask you about that p3 = 6GB I don't think there are 3 GB memory modules....?
can you check that configuration for P3
regards
Didn't your momma teach you to say thanks!
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тАО06-15-2008 12:43 AM
тАО06-15-2008 12:43 AM
Re: BL45p-G1 with 4p-16GB RAM memory distribution
Hi,
>>1-Does anyone has an idea about the memory use if are installed in this way?
Each processor has a built-in memory controller and accesses its corresponding memory accordingly. However the other processors can access the memory withthe use of the AMD HyperTransport technology. So all CPUs have access to the memory, but the one directly mapped to the memory has the fastest access to it.
2-Should every processor has the same memory amount installed for it (4GB per processor)? - No, your config seems ok. In such config normally processes are assigned to a specified CPU.
Note that if for CPU 3 you have 2x 2Gb and 2 x 1GB, the 1GB must be before the 2GB if the 2GB DIMMs are not dual-ranked...
Regards
>>1-Does anyone has an idea about the memory use if are installed in this way?
Each processor has a built-in memory controller and accesses its corresponding memory accordingly. However the other processors can access the memory withthe use of the AMD HyperTransport technology. So all CPUs have access to the memory, but the one directly mapped to the memory has the fastest access to it.
2-Should every processor has the same memory amount installed for it (4GB per processor)? - No, your config seems ok. In such config normally processes are assigned to a specified CPU.
Note that if for CPU 3 you have 2x 2Gb and 2 x 1GB, the 1GB must be before the 2GB if the 2GB DIMMs are not dual-ranked...
Regards
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тАО06-16-2008 01:44 AM
тАО06-16-2008 01:44 AM
Re: BL45p-G1 with 4p-16GB RAM memory distribution
Thank you all for your explanations.
HPE ASE Proliant-Synergy & Storage Certified Engineer
Clustering & Virtualization Support (Microsoft & Vmware)
Clustering & Virtualization Support (Microsoft & Vmware)
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