To change the clone to not copy on read requires an environment variable to be set, AFAIK.  Set this to enable should do it.  # # Parameter:                         SYMAPI_CLONE_COPY_ON_WRITE # # Allowed Values:                    ENABLE:  Sets clone nocopy mode #                                             to copy-on-write. #                                    DISABLE: Sets clone nocopy mode #                                             to copy-on-access. # # Component(s) Affected:             Clone # # Default Value:                     DISABLE
Folks, We have a very large db replicated to a VMAX, running 5876 code, from the R2 we have 4 different test,dev,Backup,QA clone copies.  We figured we could save a ton of space using nocopy clones, none of these environments require high performance.   The problem is the default behavior on a nocopy clone is copy on access.  How do we change that behavior to copyonwrite?    We have thought about changing the whole operation and using the new -vse and making it a Snap but like the idea of being able to make it a full clone copy if the need arises.  Thanks in advance.   If anyone has good documentation on the differences between a nocopy clone and the vse option that would be welcome as well.
Saving pool space with Nocopy clones