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Status Not under consideration
Workspace Storage Scale (formerly known as GPFS)
Created by Guest
Created on Aug 26, 2020

RELATED IDEAS

Support for RoW on snapshots

Redirect on Write (RoW) is a less space consuming option for snapshots (at potential expense of more workload required for deletions).

Idea priority Low
  • Guest
    Reply
    |     Oct 26, 2020

    We recognize that there are relative pros and cons for RoW and CoW under different use cases and scenarios. For the use case intended for Scale, i.e. short-term snapshots for backup purposes, we believe that CoW is generally more appropriate. Among other things, it ensures consistent performance while the snapshot exists because the original data remains in place and subsequent changes are also to the same physical place. With RoW, files can become fragmented or, in the worst case, the current-active block can even be on a slower storage tier than the original block.

  • Guest
    Reply
    |     Sep 30, 2020

    Due to processing by IBM, this request was reassigned to have the following updated attributes:
    Brand - Servers and Systems Software
    Product family - IBM Spectrum Scale
    Product - Spectrum Scale (formerly known as GPFS) - Public RFEs
    Component - Product functionality

    For recording keeping, the previous attributes were:
    Brand - Servers and Systems Software
    Product family - IBM Spectrum Scale
    Product - Spectrum Scale (formerly known as GPFS) - Public RFEs
    Component - Technical Foundation

  • Guest
    Reply
    |     Sep 25, 2020

    Can you explain in more detail how this differs from the existing implementation of snapshots?

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