To provide additional control over CA VM:Backup linking capabilities, CA VM:Backup uses the Surrogate facility. This facility, which is supported for CA VM:Secure and the Resource Access Control Facility (RACF), forces CA VM:Backup to assume the security privileges and linking capabilities of the user ID submitting the job. This is often referred to as allowing CA VM:Backup to act as the surrogate of another user ID. The SURROGAT record in the VMBACKUP CONFIG file controls the use of the surrogate facility. For more information, see SURROGAT Record.
CA VM:Backup uses the CP diagnose instruction DIAGNOSE X'D4' to interface with security system products. Using the Surrogate facility with RACF, CA VM:Backup replaces the first letter of the CA VM:Backup service virtual machine with a Z when testing for surrogate. If the first letter of the name of the CA VM:Backup service virtual machine is Z, CA VM:Backup uses a Y instead.
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