SAN LUN Access metrics relate to the request actually being serviced through read operations or write operations. User interface (UI) statistics are visible to users.
| Category | Description |
|---|---|
| Optimized Access | The percentage of optimized access commands for all LUNs that are configured on the storage system |
| Read Second | The number of read commands performed per second that are averaged over the sampling interval. The interval is the amount of time between statistics collection, which is 120 seconds (two minutes). |
| Read MB Second | The number of megabytes read per second that are averaged over the sampling interval. A megabyte is defined as 220 (1,048,576 bytes). |
| Read Millisecond | Read response times in milliseconds that are averaged over the sampling interval |
| Read Block Counts | The average number of bytes per read command for each individual LUN |
| Write Second | The number of write commands performed per second that are averaged over the sampling interval |
| Write MB Second | The number of write megabytes per second that are averaged over the sampling interval. A megabyte is defined as 220 (1,048,576 bytes). |
| Write Millisecond | The write response times in milliseconds that are averaged over the sampling interval |
| Write Block Count | The average number of bytes per write command for each individual LUN |
| Read Queue | The number of outstanding read commands for each LUN that are averaged over the sampling interval |
| Write Queue | The number of outstanding write commands for each LUN that are averaged over the sampling interval |