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Status Not under consideration
Created by Guest
Created on Aug 30, 2013

Set Vdisks READ ONLY on SVC

With the intent to make migration into the SVC pre-work and outage time to the application as short as possible. I would like the ability to once i have new disks in a unmanaged state in the SVC as part of a migration. The ability to set that device to READ ONLY from an SVC prospective. This way i take the disks to a managed state and even provide the SVC disks to the host before the full migration takes place. So at the migration only outage needed would be to stop applications, unmount,, put new "Pre-Created" FSTab in place and mount up the Vdisks. then i can unmask the original disks from the originating array. Cutting down the total outage time to minutes.

Idea priority High
  • 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

  • Guest
    Reply
    |
    Sep 4, 2013

    You are obviously familiar with the guidance provided for migrations and have proposed a smart idea for shortening the window for changing over with a migration.  When reviewing this request, the challenge in doing as you propose for general support is that host systems might not be able to tolerate the activity described (for example, based on their behaviors related to persistent reservations). While making modifications related to a specific host type and storage could be possible, we unfortunately do not see it having the potential for being an area of investment in the near-term.  Thank you for taking the time to share this idea and to get us thinking on the problem and possible solutions.  We hope you'll continue to participate with us in improving the SAN Volume Controller to meet your needs.