I am running Global mirror on an IBM 8300 DASD box. I soon will be TDMFing the volumes to a new 8870 box and starting a new Global Mirror session from the new 8700 box. I have some volumes that use to be active (had datasets on them), but since have been returned to a "free" status.

My question is would running ICKDSF with the INSTALL command on the "free" volumes save me transfer time? Either with TDMF moving the volume or Global Mirror syncing the volume. The thought is that maybe since INSTALL writes the home address on the volume all of the user data is removed and the volume would compress very well and therefore transfer very fast. True?


Ken Leidner                     [email protected]

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