z/OS DFSMS Implementing System-Managed Storage
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Determining Your Tape Hardware Use

z/OS DFSMS Implementing System-Managed Storage
SC23-6849-00

The Usage Report shows the maximum number of drives used concurrently over the sample period for your tape and cartridge subsystems. Currently, 85 drives must be available to support peak tape activity. Later, you can use this report to reduce these configurations, based on tape mount management implementation results.

Table 1 displays an example of a Usage Report that provides a summary of tape mounts.

Table 1. Maximum Tape Mounts: 18 Day Summary Report
Maximum Tape Mounts: 18 Day Summary Report
  HR 00 01 02 03 04 05 17 18 19 20 21 22 23 MAX TOT MNTS
HR MAX 49 64 48 54 43 23 19 49 85 65 5 50 72 85 6356

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