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Status Not under consideration
Workspace IBM Z and LinuxONE Systems Hardware
Categories General/Miscellaneous
Created by Guest
Created on Dec 20, 2021

RELATED IDEAS

Mask LPAR data in multi customer environment

We are a service provider managing multiple customers sharing the same mainframe CPC.
Our need is to avoid a customer can read LPAR usage data belonging to other customer (different group capacity).
In other words we have multiple LPAR group (one for each customer) in the same CPC and we want to mask LPAR usage at customer level.
For example in RMF3 CPC panel LPAR CPU usage is available for all LPAR, the same for
RMF1 CPU report.

The only option available is to disable via HMC the security flag Global Performance Data.
This option is not useful for at least following side effects:
1) RMF is no more capable to capture LPAR data at all, panel CPC become empty in the LPAR data section.
2) In PR/SM Planning guide this option is required if Hiperdispatch is enabled, all our customers use Hiperdispatch.
The low level interface DIAGNOSE_204 instruction (D204) is required by some core z/OS component.

Is there any option to keep DIAGNOSE_204 available to z/OS and mask LPAR data non belonging to the active LPAR group capacity ?

Idea priority Medium
  • Guest
    Reply
    |     Jun 13, 2022
    .Per SME Seth L. the team is not considering this RFE any longer. If this is still something needed please resubmit.
  • Guest
    Reply
    |     Mar 22, 2022 
    .Per LPAR team: Currently there is option for what they are requesting.  As they said Global Performance Data controls whether you get everything or you only get data for the issuing partition.  We don't have a more granular control and I'm not entirely sure it makes sense to have one.  Quite frankly I don't see the harm in the group capacity being reported.  You could just as easily see it on the SE/HMC group definitions panel.
     
     It would be no earlier than the zNext time frame.To get this into consideration.
  • Guest
    Reply
    |     Mar 22, 2022 
    Per LPAR team: Currently there is option for what they are requesting.  As they said Global Performance Data controls whether you get everything or you only get data for the issuing partition.  We don't have a more granular control and I'm not entirely sure it makes sense to have one.  Quite frankly I don't see the harm in the group capacity being reported.  You could just as easily see it on the SE/HMC group definitions panel.
     
     It would be no earlier than the zNext time frame.To get this into consideration.
  • Guest
    Reply
    |     Mar 22, 2022 
    LPAR Team going to be taking a look at this request to see if this is something achievable for now or the IBM z16 release
  • Guest
    Reply
    |     Jan 5, 2022

    Due to processing by IBM, this request was reassigned to have the following updated attributes:
    Brand - Servers and Systems Software
    Product family - Z and LinuxONE Systems Hardware
    Product - Z and LinuxONE Systems Hardware
    Component - General/Miscellaneous
    Operating system - IBM z/OS
    Source - None

    For recording keeping, the previous attributes were:
    Brand - Servers and Systems Software
    Product family - z Systems Software
    Product - z/OS
    Component - Advanced Data Gatherer
    Operating system - IBM z/OS
    Source - None

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