You can use cartridge loaders with the EDGINERS utility to automate the mounting of volumes that are to be erased or labeled. To use cartridge loaders set to automatic mode, do not pre-mount volumes. Mount the volumes after EDGINERS issues the first mount message because DFSMSrmm processing depends on the mount message, which is not issued when the cartridge loader is set to automatic mode and if a volume is already loaded.

If you use brand new volumes or volumes that might cause I/O errors, Automatic Volume Recognition (AVR) can reject premounted volumes at allocation time. AVR processing is not under DFSMSrmm control. AVR dismounts the premounted and readied volumes when an I/O error is detected and issues message IEF503I.

When you use cartridge loaders with EDGINERS, you can optionally use the COUNT operand to specify how many volumes you plan to load into the cartridge loader. When you use the VERIFY operand, specify the COUNT operand to enable the batch of volumes to be reloaded for verify processing before any other volumes are processed. Use the BATCH operand to specify how many batches of volumes you want to process in a single run of EDGINERS