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Status Future consideration
Created by Guest
Created on Sep 13, 2021

SCSI Unmap support for Huawei OceanStor Dorado V5/6

Our German customer is using a lot of Huawei Arrays with SVC and need support for UNMAP command for external Huawei OceanStor Dorado storage.
It is a very big and valuable customer

Idea priority High
  • Guest
    Jul 3, 2022

    Unfortunately, this limitation is not documented in the IBM System Storage Interoperation Center (SSIC), which is what I actually expect. Without this support, almost every customer will have problems with this backend storage type, since the free blocks are no longer released. Therefore, IBM should also remove all backend controllers from the SVC support list where no SCSI unmap is done and the backend controller does compression/de-duplication.