This chapter describes the minicopy feature of Volume Shadowingfor OpenVMS introduced in OpenVMS Version 7.3. Minicopy and itsenabling technology, write bitmaps, are fully implemented on OpenVMSAlpha systems. OpenVMS VAX nodes can write to shadow sets that usethis feature but they can neither create master write bitmaps normanage them with DCL commands. In a mixed-architecture OpenVMS Cluster system,only one Alpha system is required in order to use minicopy.
The primary purpose of minicopy is to shorten the time ittakes to return a shadow set member to the shadow set. The shadowset member is typically removed for the purpose of backing up thedata and is then returned to membership in the shadow set.
HP Volume Shadowing for OpenVMS
