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Status Delivered
Workspace IBM i
Categories Storage
Created by Guest
Created on Oct 30, 2018

RELATED IDEAS

Recover space on thin provisioned disks

IBM i doesn't currently support TRIM or UNMAP primitives which would allow the OS to mark space as free for the storage to reclaim. This limits the benefits of Thin Provisioning since once space is consumed it is never recovered during the life of the disk. Even doing some kind of garbage collection filling the unused space with zeroes would be an improvement since current storages (Storwize for example) have good zero detection/pattern removal/compression.


Use Case:

Allow the customer to better utilize their storage capacity leveraging the modern features provided by the storages.


Idea priority Low
  • Guest
    Reply
    |     Nov 6, 2018

    IBM i already supports unmap. See: https://www.ibm.com/developerworks/community/wikis/home?lang=en#!/wiki/IBM%20i%20Technology%20Updates/page/IBM%20i%20Functional%20Enhancements%20Details

  • Guest
    Reply
    |     Nov 6, 2018

    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 - Storage
    Operating system - IBM i
    Source - None

    For recording keeping, the previous attributes were:
    Brand - Servers and Systems Software
    Product family - Power Systems
    Product - IBM i
    Component - Core OS
    Operating system - IBM i
    Source - None

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