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# EDS Director metrics

Unisphere collects and displays metrics for EDS directors.

EDS Director metrics are supported only by storage systems (arrays) running HYPERMAX OS 5977 or PowerMaxOS 5978.

The following table lists all metrics that are available for EDS directors.

Table 1. EDS director metrics
Metric | Description
--- | ---
% Busy | The percent of time the director is busy
Random Read Misses | The number of random read I/Os that were misses
Random Read Misses Mbytes | The number of random read I/Os that were misses in MBs
Random Write Misses | The number of random write I/Os that were misses
Random Write Misses Mbytes | The number of random write I/Os that were misses in MBs