You can use multiple tape drives when initializing or erasing volumes by running one copy of EDGINERS for each tape drive that you wish to use. To run multiple copies of EDGINERS, submit multiple jobs or start multiple procedures. You can specify the same parameters or different parameters for each EDGINERS job you run. For example, you can split volumes between jobs by specifying the MEDIANAME operand, POOL operand, or the LOCATION operand on separate runs of EDGINERS to initialize different volumes. If you use the same parameters, each EDGINERS job you run shares the volumes that are to be initialized. During EDGINERS processing, DFSMSrmm serializes the use of the volume by using a SYSTEMS ENQ. Serializing the use of the volume ensures that no other invocation of EDGINERS attempts to initialize the volume. EDGINERS skips those volumes already processed or that are serialized. When you run multiple copies of EDGINERS with the same parameters, specify the BATCH(0) parameter to ensure that EDGINERS processing continues until all volumes are initialized or erased. Refer to EXEC parameters for EDGINERS for information about the EDGINERS BATCH parameter and the EDGINERS COUNT parameter. Specify the COUNT(x) parameter if you are using the VERIFY parameter or if you are using cartridge loaders to control the batch size.