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  • 1.  lparstat command

    Posted Tue December 27, 2011 07:43 AM

    Originally posted by: sajid1


    Hi,

    Could you please explain me the parameters of as below command.
    Example: I need to CPU count there are parameters of it these are:
    $laparstat -i
    Online Virtual CPUs 0
    Maximum Virtual CPUs 2
    Minimum Virtual CPUs 8
    Maximum Physical CPUs in system 16
    Active Physical CPUs in system 16
    Active CPUs in Pool 16
    --What are these maximum, online, minimum
    Same as below.
    Online Memory 12288 MB
    Maximum Memory 16384 MB
    Minimum Memory 11264 MB
    Thanks
    #AIX-Forum


  • 2.  Re: lparstat command

    Posted Tue December 27, 2011 10:31 AM

    Originally posted by: HemantRamparia


    May be this will help out.For quick reference you can check man pages

    -i Lists details on the LPAR configuration. The various details displayed by the -i option are listed below:
    Name
    Description
    Partition Name
    Logical partition name as assigned at the HMC.
    Partition Number
    Number of this Logical Partition.
    Online Virtual CPUs
    Number of CPUs (virtual engines) currently online.
    Maximum Virtual CPUs
    Maximum possible number of CPUs (virtual engines).
    Online Memory
    Amount of memory currently online.
    Maximum Memory
    Maximum possible amount of Memory.
    Type
    Indicates whether the LPAR is using dedicated or shared CPU resource and if the SMT is turned ON. The Type is displayed in the format Dedicated -SMT -#
    The following list explains the different Type formats:

    •Shared - Indicates that the LPAR is running in the Shared processor mode.
    •Dedicated - Indicates that the LPAR is running in the dedicated processor mode.
    •SMT-# - Indicates that the LPAR has SMT mode turned ON and the number of SMT threads is 2. If the number of threads is greater than 2, then the number of threads is also displayed.
    Mode
    Indicates whether the LPAR processor capacity is capped, or if it is uncapped and allowed to consume idle cycles from the shared pool. Dedicated LPAR is capped or donating.
    Entitled Capacity
    The number of processing units this LPAR is entitled to receive.
    Variable Capacity Weight
    The priority weight assigned to this LPAR which controls how extra (idle) capacity is allocated to it. A weight of -1 indicates a soft cap is in place.
    Minimum Capacity
    The minimum number of processing units this LPAR was defined to ever have. Entitled capacity can be reduced down to this value.
    Maximum Capacity
    The maximum number of processing units this LPAR was defined to ever have. Entitled capacity can be increased up to this value.
    Capacity Increment
    The granule at which changes to Entitled Capacity can be made. A value in whole multiples indicates a Dedicated LPAR.
    Maximum Physical CPUs in System
    The maximum possible number of physical CPUs in the system containing this LPAR.
    -i (continued) Active Physical CPUs in System
    The current number of active physical CPUs in the system containing this LPAR.
    Active CPUs in Pool
    The maximum number of CPUs available to this LPAR's shared processor pool.
    Shared Physical CPUs in system
    The number of physical CPUs available for use by shared processor LPARs.
    Maximum Capacity of Pool
    The maximum number of processing units available to this LPAR's shared processor pool.
    Entitled Capacity of Pool
    The number of processing units that this LPAR's shared processor pool is entitled to receive.
    Unallocated Capacity
    The sum of the number of processor units unallocated from shared LPARs in an LPAR group. This sum does not include the processor units unallocated from a dedicated LPAR, which can also belong to the group. The unallocated processor units can be allocated to any dedicated LPAR (if it is greater than or equal to 1.0 ) or shared LPAR of the group.
    Physical CPU Percentage
    Fractional representation relative to whole physical CPUs that these LPARs virtual CPUs equate to. This is a function of Entitled Capacity / Online CPUs. Dedicated LPARs would have 100% Physical CPU Percentage. A 4-way virtual with Entitled Capacity of 2 processor units would have a 50% physical CPU Percentage.
    Minimum Memory
    Minimum memory this LPAR was defined to ever have.
    Minimum Virtual CPUs
    Minimum number of virtual CPUs this LPAR was defined to ever have.
    Unallocated Weight
    Number of variable processor capacity weight units currently unallocated within the LPAR group.
    Partition Group ID
    LPAR group that this LPAR is a member of.
    Shared Pool ID
    Identifier of Shared Pool of Physical processors that this LPAR is a member.
    #AIX-Forum


  • 3.  Re: lparstat command

    Posted Tue December 27, 2011 01:03 PM

    Originally posted by: SystemAdmin


    basic powervm literature (close to the beginning)
    http://www.redbooks.ibm.com/abstracts/sg247940.html
    #AIX-Forum