Db2 (On Premises and Cloud)

Db2 v11.5 Licensing - db2licm : number of processor cores entitlements

  • 1.  Db2 v11.5 Licensing - db2licm : number of processor cores entitlements

    Posted Fri February 07, 2020 07:49 AM
    Starting Db2 v11.5 , licensing tool db2licm  has the option  "-m"  , to lower processor core limit
    ( see https://www.ibm.com/support/knowledgecenter/SSEPGG_11.5.0/com.ibm.db2.luw.admin.cmd.doc/doc/r0002451.html )

    -m product-identifier num-cores
    "Updates the number of cores entitlements that the customer has purchased for record keeping. Specify the product identifier and the number of cores. Note that there is no enforcement on the actual number of cores."

    At all times, one should be legal (and technical) compliant ;  only use the max number of PVU/VPC's purchased.
    (let's say, purchased 1x Virtual Processor Core (VPC) license key, entitled to use for max 50 vCPU's , on many (virtual) servers on-premise / of-premise.  one can have a (virtual) server with 12x vCPU's , then with db2licm add VPC license key , and lower cores  to f.i. 4x cores .... But then cannot restrict Db2 instances using max 4 cores, not legally nor technically (on Linux/RHEL)  ?

    Why, with db2licm, would one actually want to 'limit' the cores on a Db2 server installation (for a specific Edition), if it is not enforced  when one actually uses the Db2 product ?  For just  'record' keeping only seems useless to me.

    Erwin Hattingh
    Systems Engineer / Db2 DBA
    Triodos Bank