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Status Future consideration
Workspace IBM Spectrum Virtualize / FlashSystem
Created by Guest
Created on Oct 6, 2014

RELATED IDEAS

3rd vdisk copy for volume migration

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
  • 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

1 MERGED

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

Merged
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...
9 days ago in IBM Spectrum Virtualize / FlashSystem 1 Future consideration

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