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AIX v5.3 How to caluclate the LPAR total memory

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  #1  
Old May 20th, 2008
bvijaycom's Avatar
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How to caluclate the LPAR total memory
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Dear All,

In my AIX server i am having 2 VIO and 2 LPAR.In my P550 Server,i am having 32 GB total Memory.

But if i calculate from LPAR memory ,it is not matching to Total installed memory.

DATABASE-SERVER-P550-1 16384
APPLICATION-SERVER-P550-1 6144
WEB-SERVER-P550-1 4096
P550-1-VIOS2 2048
P550-1-VIOS1 2048
Total Configured memory 30720
Missing Memory 2048

Here i have attached the LPAR Memory screen shot also.

Please help me on this !!!!.

Thanks & Regards,
BVIJAY
Attached Images
File Type: jpg LPAR Memory Screenshot.jpg (41.2 KB, 11 views)
Last edited by bvijaycom; May 20th, 2008 at 06:20.
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Old May 20th, 2008
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Re: How to caluclate the LPAR total memory
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Hi

Remember that pSeries servers use an area of memory called the Hypervisor used to hold info about LPARs and some other stuff like addressing tables for any PCI connected device your server has. In fact parameters like maximum amount of memory desired or maximum CPU units affect the hypervisor and the final ammount of free RAM available.

More info

http://www.redbooks.ibm.com/redbooks...tml/wwhelp.htm


Hope this helps
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Old May 20th, 2008
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Re: How to caluclate the LPAR total memory
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HYpervisor usages the maximum Memory value of each LPAR to allocate memory for its own usage.

This value is 1/64th of the memory allocated (rounded up)
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