The TS7VMA query generates a daily chart for each IBM TS7700 Grid and Cluster combination. The chart shows the hourly virtual tape mount activity and maximum concurrent virtual tape drive use. The number of virtual tape mounts are shown, for each hour, using a stacked vertical bar composed of fast ready (scratch), cache hit, and recall (cache miss) mounts. The maximum number of concurrently mounted virtual tape drives for each hour is charted using a horizontal line.
The example shows a daily chart generated for an IBM TS7700 Grid 00100 and Cluster 0. Hour 10 was the peak hour for virtual tape mounts. The maximum number of concurrently mounted tape drives was 30. This number occurred at hour 4. The maximum number of recall (cache miss) mounts was 18, and occurred at hour 2.
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