Hp eva unmap metrics – HP Command View EVA Software User Manual

Page 100

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WSAME Dest Other Req/s

—The average number of WRITE SAME requests arrived per

second, where the destination LUN is owned by other controller, calculated over the polling
interval.

•

WSAME Ave Queue Depth

—Average number of WRITE SAME requests that are pending,

calculated over the polling interval.

•

WSAME Busies/s

—The average number of BUSY responses sent per second, during the

polling interval, for WRITE SAME operations due to a queue full condition.

HP EVA Unmap Metrics

The HP EVA unmap metrics provides the summary of performance data for unmap commands.
Each controller’s activity is reported separately.

The counters are:

•

UNMAP Completed Req/s

—The average number of UNMAP requests completed per

second, calculated over the polling interval.

•

UNMAP Latency

—The average time, in milliseconds, taken to complete one UNMAP request,

averaged over all the UNMAP requests completed during the polling interval.

•

UNMAP Arrived Req/s

—The average number of UNMAP requests received per second,

calculated over the polling interval.

•

UNMAP Failed Req/s

—The average number of UNMAP requests failed per second,

calculated over the polling interval.

•

UNMAP Dest This Req/s

—The average number of UNMAP requests arrived per second,

where the destination LUN is owned by this controller, calculated over the polling interval.

•

UNMAP Dest Other Req/s

—The average number of UNMAP requests arrived per second,

where the destination LUN is owned by other controller, calculated over the polling interval.

•

UNMAP Completed MB/s

—The data rate at which the storage space is requested to be

reclaimed by the host issued and completed UNMAP requests, calculated over the polling
interval.

•

UNMAP Reclaimed MB/s

—The data rate at which the storage space is actually reclaimed

as a result of completed UNMAP requests, calculated over the polling interval.

•

UNMAP Ave Queue Depth

—Average number of UNMAP requests that are pending,

calculated over the polling interval.

•

UNMAP Busies/s

—The average number of BUSY responses sent per second, during the

polling interval, for UNMAP operations due to a queue full condition.

100 Monitoring array performance using HP P6000 Performance Data Collector

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