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Status Not under consideration
Workspace IBM i
Categories PowerHA
Created by Guest
Created on Feb 8, 2020

ENDFLASH to not write changes on VRYOFF

Problem description: We create flash partitions for temporary use and on the ENDFLASH we are just going to do another STRFLASH to refresh the data. No need to keep it. The writing changes to disk on the Vary Off is taking anywhere from 5-20 minutes to complete.

Current workaround: None

Proposed resolution:
We would like the option in a PowerHA Flash enviorment to have a flag that would only be available to flash copies to pass in do not write changes to disk, just clear up memory.

Business impact: We need to flash and re-flash as quickly as possible. We have minutes to reflash. If it keeps growing it will have external client impact.

Which release do you see the problem on?: V7R3


Use Case:

We have systems that flash repeatedly to get fresh data. The vary on is in minutes, the vary off takes anywhere from 5-25 minutes writing changes to disk.

Please provide an option to not write changes to disk.
or help us understand more on that process to improve the times.


Idea priority Urgent
  • Guest
    Feb 10, 2022

    The PowerHA team does not intend to provide a solution to this request at this time, so it is being closed. Writing data to disk is an essential part of the vary-off process. While we understand that it may not be necessary for a copy that is being deleted (such as when ending a FlashCopy), if used accidentally, skipping writes at vary-off time can cause accidental and unintended data loss.

  • Guest
    Oct 6, 2020

    The PowerHA team will use this request as input to planning but no commitment is made or implied. The request will be updated in the future if the request is implemented. The PowerHA team will use votes and comments from others in the community to help prioritize this request.

  • Guest
    Apr 9, 2020

    The PowerHA team has received the requirement and is evaluating it. The PowerHA team will provide a response after evaluation is complete.

  • Guest
    Feb 10, 2020

    Due to processing by IBM, this request was reassigned to have the following updated attributes:
    Brand - Servers and Systems Software
    Product family - Power Systems
    Product - IBM i
    Component - PowerHA
    Operating system - IBM i
    Source - IBM User Group

    For recording keeping, the previous attributes were:
    Brand - Servers and Systems Software
    Product family - Power Systems
    Product - PowerHA
    Component - PowerHA for i
    Operating system - IBM i
    Source - IBM User Group