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Status Not under consideration
Workspace IBM i
Created by Guest
Created on May 2, 2018

Add AIX LVM functionality to IBM i for Load Source Migration with zero downtime

Add AIX LVM functionality to IBM i for Load Source Migration with zero downtime.


Use Case:

Minimize downtime when migrating storage with IBM i.


Idea priority High
  • Guest
    Jun 17, 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 - Install, Upgrade, Licensing
    Operating system - IBM i
    Source - Other

    For recording keeping, the previous attributes were:
    Brand - Servers and Systems Software
    Product family - Power Systems
    Product - IBM i
    Component - Availability, Recovery
    Operating system - IBM i
    Source - Other

  • Guest
    Jul 30, 2019

    Closing this request due to low number of votes, low priority from COMMON Americas Advisory Council (CAAC), and low priority from development perspective versus high cost and technical obstacles. The load source is more than a boot device, so there is a need to go to DST to copy the load source since it contains customer data. Changing this design point would be require a major effort/investment and prioritization versus other higher priority enhancements. Note, DB2 Mirror may also provide an alternative solution for this scenario in the future.

  • Guest
    Jul 30, 2019

    The CAAC has reviewed this requirement and recommends that IBM view this as a “nice to have” low priority feature. This certainly would enhance the OS and would be nice to have, but there is not a significant number of community members that have a need for it at this time.

    Background: The COMMON Americas Advisory Council (CAAC) members have a broad range of experience in working with small and medium-sized IBM i customers. CAAC has a key role in working with IBM i development to help assess the value and impact of individual RFEs on the broader IBM i community, and has therefore reviewed your RFE.

    For more information about CAAC, see www.common.org/caac

    For more details about CAAC's role with RFEs, see http://www.ibmsystemsmag.com/Blogs/i-Can/May-2017/COMMON-Americas-Advisory-Council-%28CAAC%29-and-RFEs/

    Nancy Uthke-Schmucki - CAAC Program Manager

  • Guest
    May 15, 2018

    My interest is the DST function in the option 9 Copy Disk Unit Data under work with disk unit recovery. Want the function for both internal and external disk.

  • Guest
    May 15, 2018

    There are various storage/load source migration scenarios -- internal to internal, internal to external, compatible external to external (e.g., DS8k to DS8k), incompatible external to external (e.g., the AIX case described going from XIV to V7000). Some scenarios are inherently more disruptive in some cases due to the changes in hardware, attachment, etc. Also, in the compatible external storage cases, one might expect to leverage storage replication technologies such as HyperSwap to enable migration with zero downtime. Please prioritize the different types of storage/load source migration scenarios which you feel are most important for your request.

  • Guest
    May 12, 2018

    With AIX, myself and an another SE was able to migrate a customer from an XIV to a V7000 without any downtime. We mirrored the rootvg in the XIV with the new rootvg in the V7000. We then broke the mirror leaving the rootvg on the V7000. We transitioned the customer from an XIV to a V7000 without the users knowing we were there.

    With the Load Source Migration in IBM i, you have 1 to 2 hours of downtime while the system is IPLd in DST for the Load Source Migration.

    We would be nice if we could implement the AIX LVM functionality for the rootvg migration building a mirror and then breaking the mirror leaving the rootvg in the target storage in IBM i.

  • Guest
    May 11, 2018

    To help understand the request, please provide more details about the AIX LVM aspects of the solution you're proposing and how it might address specific issues/problems with the current load source migration process.