Reducing Cores in T5240 server for meeting Oracle Core Licences Post: 302848691

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Operating Systems Solaris Reducing Cores in T5240 server for meeting Oracle Core Licences Post 302848691 by os2mac on Thursday 29th of August 2013 08:47:49 PM

08-29-2013

Registered User

you need to configure Guest LDOMS and provide a portion of the vcpu resources to the guest

LDOMs and VM for Sparc are intended to allow you to partition the physical resources of the host into smaller manageable portions to allow for minimizing exposure for licensing purposes.

Oracle licenses are based on the number of cores available to the software for processing. Configuring a Guest LDOM and then only allow Xcores to be accessed by that LDOM will prevent you from having to license the whole server for use if you only need a smaller number of cores for processing that workload.

You've stated that your Sparc T5240 is configured with 4 cores (2 x cpu, 2 cores per cpu, 8 threads per core). So assuming you would only want to license 1/2 of those resources you need to build a Guest LDOM, assign it 16 VCPU and that will limit the resources to 1/2 of the available physical resources.

To do this you will need to create virtual infrastructure for the new LDOM (virtual networking, virtual disk servers, virtual disks,) and create the VM itself. This will require you to partition your disks and install an additional copy of the OS. I would recommend you use Solaris 11 if you can as the VM updates for that OS allow for a more robust config.

Hope this helps.

os2mac

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papi_hw_info_t

PAPI_hw_info_t(3)						       PAPI							 PAPI_hw_info_t(3)

NAME

       PAPI_hw_info_t -

       Hardware info structure.

SYNOPSIS

   Data Fields
       int ncpu
       int threads
       int cores
       int sockets
       int nnodes
       int totalcpus
       int vendor
       char vendor_string [128]
       int model
       char model_string [128]
       float revision
       int cpuid_family
       int cpuid_model
       int cpuid_stepping
       int cpu_max_mhz
       int cpu_min_mhz
       PAPI_mh_info_t mem_hierarchy
       int virtualized
       char virtual_vendor_string [128]
       char virtual_vendor_version [128]
       float mhz
       int clock_mhz
       int reserved [8]

Field Documentation
   int PAPI_hw_info_t::clock_mhz
       Deprecated

   int PAPI_hw_info_t::cores
       Number of cores per socket

   int PAPI_hw_info_t::cpu_max_mhz
       Maximum supported CPU speed

   int PAPI_hw_info_t::cpu_min_mhz
       Minimum supported CPU speed

   int PAPI_hw_info_t::cpuid_family
       cpuid family

   int PAPI_hw_info_t::cpuid_model
       cpuid model

   int PAPI_hw_info_t::cpuid_stepping
       cpuid stepping

   PAPI_mh_info_t PAPI_hw_info_t::mem_hierarchy
       PAPI memory heirarchy description

   float PAPI_hw_info_t::mhz
       Deprecated

   int PAPI_hw_info_t::model
       Model number of CPU

   char PAPI_hw_info_t::model_string[128]
       Model string of CPU

   int PAPI_hw_info_t::ncpu
       Number of CPUs per NUMA Node

   int PAPI_hw_info_t::nnodes
       Total Number of NUMA Nodes

   float PAPI_hw_info_t::revision
       Revision of CPU

   int PAPI_hw_info_t::sockets
       Number of sockets

   int PAPI_hw_info_t::threads
       Number of hdw threads per core

   int PAPI_hw_info_t::totalcpus
       Total number of CPUs in the entire system

   int PAPI_hw_info_t::vendor
       Vendor number of CPU

   char PAPI_hw_info_t::vendor_string[128]
       Vendor string of CPU

   char PAPI_hw_info_t::virtual_vendor_string[128]
       Vendor for virtual machine

   char PAPI_hw_info_t::virtual_vendor_version[128]
       Version of virtual machine

   int PAPI_hw_info_t::virtualized
       Running in virtual machine

Author
       Generated automatically by Doxygen for PAPI from the source code.

Version 5.2.0.0 						  Tue Jun 17 2014						 PAPI_hw_info_t(3)