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# Masking View metrics

Unisphere collects and displays metrics for masking views.

Within the PM metrics section, V4 is used to denote that the metric is supported only by a storage system (array) running PowerMaxOS 10 (6079). V3 is used to denote that the metric is supported only by a storage system (array) running HYPERMAX OS 5977 or PowerMaxOS 5978. Metrics without the denotation are supported by all storage systems (arrays).

The following table lists all metrics that are available for masking views.

Table 1. Masking view metrics
Metric | Description
--- | ---
Capacity | The total capacity of the masking group in GBs
Host IOs/sec | The number of host operations performed each second by the masking group
Host Throughput | Number of MBs per second being processed for the specific masking group
Read RT | The average time that it takes to serve one read I/O
Response Time | The average response time for the reads and writes
Write RT | The average time that it takes to serve one write I/O