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Status Not under consideration
Workspace IBM Spectrum Virtualize / FlashSystem
Created by Guest
Created on Oct 6, 2014

RELATED IDEAS

3rd vdisk copy for volume migration

See this idea on ideas.ibm.com

The vdisk mirror function is great, but there are a couple of scenarios where two mirrored copies are actually not enough for many customers. Typically this is when customers mandate that there are ALWAYS two copies of a volume.

The function does not need to be enable running with 3 copies in production. It would be sufficient to add a 3rd copy and telling SVC which existing copy to remove once the 3rd copy is in sync.

Idea priority High
  • Admin
    Philip Clark
    Reply
    |     Feb 7, 2025

    A 3rd vdisk copy is only required in stretch cluster architecture, where vdisk mirroring is used for HA.

    With policy-based HA, vdisk copy can already be used for migration/conversion requirements.

    1 reply
  • Guest
    Reply
    |     Jan 28, 2025

    we neeeeeeeed this function it will save lots of time with migrations!!!.

    so when it will be available? :)

  • Guest
    Reply
    |     Jun 29, 2023

    There's definitely a high potential in this idea. Actually ANY stretched cluster would benefit from such a temporary 3rd copy during any kind of data migration while upholding full redundancy.

    Another use case would be, again in stretched environments where there's always 2 copies of all vdisks, to be able to shrink thin volumes (SEVs) where unmapped space has accumulated with the help of such a 3rd copy.

    And hey, we've got to do something useful with the bumped up bitmap space of 20 gigs for SV3s running 8.6+! :-)

  • Guest
    Reply
    |     Jun 12, 2015

    Due to processing by IBM, this request was reassigned to have the following updated attributes:
    Brand - Servers and Systems Software
    Product family - Storage
    Product - IBM System Storage SAN Volume Controller (SVC) / Spectrum Virtualize

    For recording keeping, the previous attributes were:
    Brand - Tivoli
    Product family - Storage
    Product - IBM System Storage SAN Volume Controller (SVC) / Spectrum Virtualize

19 MERGED

Migrate SVC volumes from/to pools with different extent sizes

Would it be possible to add a feature/fuction that volumes can be migrated from a pool to another where the pools (source and target pool) have different extent sizes? That would be verry helpful for migration tasks in long grown environments wher...
about 1 year ago in IBM Spectrum Virtualize / FlashSystem 2 Not under consideration
2 MERGED

migrate vdisk mirror (svc esc topology) between pools (not child pool)

migrate vdisk mirror (svc esc topology) between pools (not child pool) we have today pool with extent size of 1gb and its limit the total pool capacity to 4pb. we want to create new pool with extent size of 2gb and migrate the existing vdisks with...
4 months ago in IBM Spectrum Virtualize / FlashSystem 1 Not under consideration

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